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  • FEATURES SUPERIOR SOUND QUALITY

    ULTRA LOW DISTORTION: 0.00008%

    LOW NOISE: 8nV/Hz TRUE FET-INPUT: I

    B = 5pA

    HIGH SPEED:

    SLEW RATE: 20V/sBANDWIDTH: 8MHz

    HIGH OPEN-LOOP GAIN: 120dB (600) WIDE SUPPLY RANGE: 2.5V to 18V SINGLE, DUAL, AND QUAD VERSIONS

    High PerformanceAUDIO OPERATIONAL AMPLIFIERS

    TM

    DESCRIPTIONThe OPA134 series are ultra-low distortion, low noiseoperational amplifiers fully specified for audio appli-cations. A true FET input stage was incorporated toprovide superior sound quality and speed for excep-tional audio performance. This in combination withhigh output drive capability and excellent dc perfor-mance allows use in a wide variety of demandingapplications. In addition, the OPA134s wide outputswing, to within 1V of the rails, allows increasedheadroom making it ideal for use in any audio circuit.OPA134 op amps are easy to use and free from phaseinversion and overload problems often found in com-mon FET-input op amps. They can be operated from2.5V to 18V power supplies. Input cascode cir-cuitry provides excellent common-mode rejection andmaintains low input bias current over its wide inputvoltage range, minimizing distortion. OPA134 seriesop amps are unity-gain stable and provide excellentdynamic behavior over a wide range of load condi-tions, including high load capacitance. The dual andquad versions feature completely independent cir-cuitry for lowest crosstalk and freedom from interac-tion, even when overdriven or overloaded.

    Single and dual versions are available in 8-pin DIPand SO-8 surface-mount packages in standard con-figurations. The quad is available in 14-pin DIP andSO-14 surface mount packages. All are specified for40C to +85C operation. A SPICE macromodel isavailable for design analysis.

    APPLICATIONS PROFESSIONAL AUDIO AND MUSIC

    LINE DRIVERS

    LINE RECEIVERS

    MULTIMEDIA AUDIO

    ACTIVE FILTERS

    PREAMPLIFIERS

    INTEGRATORS

    CROSSOVER NETWORKS

    1996 Burr-Brown Corporation PDS-1339C Printed in U.S.A. December, 1997

    International Airport Industrial Park Mailing Address: PO Box 11400, Tucson, AZ 85734 Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 Tel: (520) 746-1111 Twx: 910-952-1111Internet: http://www.burr-brown.com/ FAXLine: (800) 548-6133 (US/Canada Only) Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132

    1

    2

    3

    4

    8

    7

    6

    5

    V+

    Out B

    In B

    +In B

    Out A

    In A

    +In A

    V

    OPA2134

    8-Pin DIP, SO-8

    A

    B

    1

    2

    3

    4

    5

    6

    7

    14

    13

    12

    11

    10

    9

    8

    Out D

    In D

    +In D

    V

    +In C

    In C

    Out C

    Out A

    In A

    +In A

    V+

    +In B

    In B

    Out B

    OPA4134

    14-Pin DIPSO-14

    A D

    B C

    1

    2

    3

    4

    8

    7

    6

    5

    Offset Trim

    V+

    Output

    NC

    Offset Trim

    In

    +In

    V

    OPA134

    8-Pin DIP, SO-8

    OPA134OPA2134OPA4134

    OPA134 OPA2134OPA4134

    OPA4134

    OPA134 OPA2134

    SBOS058

  • 2

    OPA134/2134/4134

    SPECIFICATIONSAt TA = +25C, VS = 15V, unless otherwise noted.

    OPA134PA, UAOPA2134PA, UAOPA4134PA, UA

    PARAMETER CONDITION MIN TYP MAX UNITS

    AUDIO PERFORMANCETotal Harmonic Distortion + Noise G = 1, f = 1kHz, VO = 3Vrms

    RL = 2k 0.00008 %RL = 600 0.00015 %

    Intermodulation Distortion G = 1, f = 1kHz, VO = 1Vp-p 98 dBHeadroom(1) THD < 0.01%, RL = 2k, VS = 18V 23.6 dBu

    FREQUENCY RESPONSEGain-Bandwidth Product 8 MHzSlew Rate(2) 15 20 V/sFull Power Bandwidth 1.3 MHzSettling Time 0.1% G = 1, 10V Step, CL = 100pF 0.7 s

    0.01% G = 1, 10V Step, CL = 100pF 1 sOverload Recovery Time (VIN) (Gain) = VS 0.5 s

    NOISEInput Voltage Noise

    Noise Voltage, f = 20Hz to 20kHz 1.2 VrmsNoise Density, f = 1kHz 8 nV/Hz

    Current Noise Density, f = 1kHz 3 fA/Hz

    OFFSET VOLTAGEInput Offset Voltage 0.5 2 mV

    TA = 40C to +85C 1 3(3) mVvs Temperature TA = 40C to +85C 2 V/Cvs Power Supply (PSRR) VS = 2.5V to 18V 90 106 dB

    Channel Separation (Dual, Quad) dc, RL = 2k 135 dBf = 20kHz, RL = 2k 130 dB

    INPUT BIAS CURRENTInput Bias Current(4) VCM =0V +5 100 pA

    vs Temperature(3) See Typical Curve 5 nAInput Offset Current(4) VCM =0V 2 50 pA

    INPUT VOLTAGE RANGECommon-Mode Voltage Range (V)+2.5 13 (V+)2.5 VCommon-Mode Rejection VCM = 12.5V to +12.5V 86 100 dB

    TA = 40C to +85C 90 dB

    INPUT IMPEDANCEDifferential 1013 || 2 || pFCommon-Mode VCM = 12.5V to +12.5V 1013 || 5 || pF

    OPEN-LOOP GAINOpen-Loop Voltage Gain RL = 10k, VO = 14.5V to +13.8V 104 120 dB

    RL = 2k, VO = 13.8V to +13.5V 104 120 dBRL = 600, VO = 12.8V to +12.5V 104 120 dB

    OUTPUTVoltage Output RL = 10k (V)+0.5 (V+)1.2 V

    RL = 2k (V)+1.2 (V+)1.5 VRL = 600 (V)+2.2 (V+)2.5 V

    Output Current 35 mAOutput Impedance, Closed-Loop(5) f = 10kHz 0.01

    Open-Loop f = 10kHz 10 Short-Circuit Current 40 mACapacitive Load Drive (Stable Operation) See Typical Curve

    POWER SUPPLYSpecified Operating Voltage 15 VOperating Voltage Range 2.5 18 VQuiescent Current (per amplifier) IO = 0 4 5 mA

    TEMPERATURE RANGESpecified Range 40 +85 COperating Range 55 +125 CStorage 55 +125 CThermal Resistance, JA

    8-Pin DIP 100 C/WSO-8 Surface-Mount 150 C/W14-Pin DIP 80 C/WSO-14 Surface-Mount 110 C/W

    NOTES: (1) dBu = 20*log (Vrms/0.7746) where Vrms is the maximum output voltage for which THD+Noise is less than 0.01%. See THD+Noise text. (2) Guaranteedby design. (3) Guaranteed by wafer-level test to 95% confidence level. (4) High-speed test at TJ = 25C. (5) See Closed-Loop Output Impedance vs Frequencytypical curve.

  • 3 OPA134/2134/4134

    PACKAGEDRAWING TEMPERATURE

    PRODUCT PACKAGE NUMBER(1) RANGE

    SingleOPA134PA 8-Pin Plastic DIP 006 40C to +85COPA134UA SO-8 Surface-Mount 182 40C to +85C

    DualOPA2134PA 8-Pin Plastic DIP 006 40C to +85COPA2134UA SO-8 Surface-Mount 182 40C to +85C

    QuadOPA4134PA 14-Pin Plastic DIP 010 40C to +85COPA4134UA SO-14 Surface-Mount 235 40C to +85C

    NOTE: (1) For detailed drawing and dimension table, please see end of datasheet, or Appendix C of Burr-Brown IC Data Book.

    ELECTROSTATICDISCHARGE SENSITIVITY

    This integrated circuit can be damaged by ESD. Burr-Brownrecommends that all integrated circuits be handled withappropriate precautions. Failure to observe proper handlingand installation procedures can cause damage.

    ESD damage can range from subtle performance degrada-tion to complete device failure. Precision integrated circuitsmay be more susceptible to damage because very smallparametric changes could cause the device not to meet itspublished specifications.

    ABSOLUTE MAXIMUM RATINGS(1)

    Supply Voltage, V+ to V .................................................................... 36VInput Voltage .................................................... (V) 0.7V to (V+) +0.7VOutput Short-Circuit(2) .............................................................. ContinuousOperating Temperature ................................................. 40C to +125CStorage Temperature ..................................................... 55C to +125CJunction Temperature ...................................................................... 150CLead Temperature (soldering, 10s) ................................................. 300C

    NOTES: (1) Stresses above these ratings may cause permanent damage.(2) Short-circuit to ground, one amplifier per package.

    TYPICAL PERFORMANCE CURVESAt TA = +25C, VS = 15V, RL = 2k, unless otherwise noted.

    TOTAL HARMONIC DISTORTION + NOISEvs FREQUENCY

    Frequency (Hz)

    TH

    D+

    Noi

    se (

    %)

    0.1

    0.01

    0.001

    0.0001

    0.00001

    10 100 1k 10k 100k

    2k600

    RL

    VO = 3VrmsG = +1

    G = +10

    SMPTE INTERMODULATION DISTORTIONvs OUTPUT AMPLITUDE

    Output Amplitude (Vpp)

    IMD

    (%

    )

    1

    0.1

    0.010

    0.001

    0.0005

    5

    30m 0.1 1 10 30

    G = +1f = 1kHzRL = 2k

    Baseline

    OP176OPA134

    OPA134

    The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumesno responsibility for the use of this information, and all use of such information shall be entirely at the users own risk. Prices and specifications are subject to changewithout notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrantany BURR-BROWN product for use in life support devices and/or systems.

    PACKAGE/ORDERING INFORMATION

  • 4

    OPA134/2134/4134

    HEADROOM TOTAL HARMONIC DISTORTION+ NOISE vs OUTPUT AMPLITUDE

    Output Amplitude (Vrms)

    TH

    D+

    Noi

    se (

    %)

    1

    0.1

    0.010

    0.001

    0.00050.1 1 10 20

    VS = 18VRL = 2kf = 1kHz

    THD < 0.01%OPA134 11.7VrmsOP176 11.1Vrms

    Baseline

    OP176OPA134

    OPA134

    TYPICAL PERFORMANCE CURVES (CONT)At TA = +25C, VS = 15V, RL = 2k, unless otherwise noted.

    TOTAL HARMONIC DISTORTION + NOISEvs FREQUENCY

    Frequency (Hz)

    TH

    D+

    Noi

    se (

    %)

    0.01

    0.001

    0.0001

    0.0000120 100 1k 10k 20k

    VO = 10VrmsRL = 2k

    VS = 16

    VS = 17 VS = 18

    HARMONIC DISTORTION + NOISE vs FREQUENCY

    Frequency (Hz)

    Am

    plitu

    de (%

    of F

    unda

    men

    tals

    )

    0.01

    0.001

    0.0001

    0.00001

    0.00000120 100 1k 10k 20k

    2nd Harmonic3rd Harmonic

    VO = 1Vrms

    R L = 6

    00

    R L = 2

    k

    VOLTAGE NOISE vs SOURCE RESISTANCE

    Source Resistance ()

    Vol

    tage

    Noi

    se (

    nV/

    Hz)

    1k

    100

    10

    1

    0.110 100 1k 10k 100k 1M 10M

    OP176+Resistor

    OPA134+Resistor

    Resistor NoiseOnly Vn (total) = (inRS)

    2 + en2 + 4kTRS

    INPUT VOLTAGE AND CURRENT NOISESPECTRAL DENSITY vs FREQUENCY

    1

    1k

    100

    10

    Vol

    tage

    Noi

    se (

    nV/

    Hz)

    Frequency (Hz)

    10 100 1k 10k 100k 1M

    1

    Cur

    rent

    Noi

    se (

    fA/

    Hz)

    Voltage Noise

    Current Noise

    INPUT-REFERRED NOISE VOLTAGEvs NOISE BANDWIDTH

    Noise Bandwidth (Hz)

    Noi

    se V

    olta

    ge (

    V)

    100

    10

    1

    0.11 10 100 1k 10k 100k

    RS = 20

    Peak-to-Peak

    RMS

  • 5 OPA134/2134/4134

    TYPICAL PERFORMANCE CURVES (CONT)At TA = +25C, VS = 15V, RL = 2k, unless otherwise noted.

    OPEN-LOOP GAIN/PHASE vs FREQUENCY

    0.1 1 10 100 1k 10k 100k 1M 10M

    160

    140

    120

    100

    80

    60

    40

    20

    0

    20

    0

    45

    90

    135

    180

    Vol

    tage

    Gai

    n (d

    B)

    Pha

    se S

    hift

    ()

    Frequency (Hz)

    G

    CLOSED-LOOP GAIN vs FREQUENCY

    Frequency (Hz)

    Clo

    sed-

    Loop

    Gai

    n (d

    B)

    50

    40

    30

    20

    10

    0

    10

    201k 10k 100k 1M 10M

    G = +10

    G = +100

    G = +1

    POWER SUPPLY AND COMMON-MODE REJECTIONvs FREQUENCY

    Frequency (Hz)

    PS

    R, C

    MR

    (dB

    )

    120

    100

    80

    60

    40

    20

    010 100 1k 10k 100k 1M

    CMR

    PSR

    +PSR

    MAXIMUM OUTPUT VOLTAGEvs FREQUENCY

    Frequency (Hz)

    10k 100k 1M 10M

    30

    20

    10

    0

    Out

    put V

    olta

    ge (

    Vp-

    p)

    VS = 15V

    VS = 2.5V

    VS = 5V

    Maximum output voltagewithout slew-rateinduced distortion

    CLOSED-LOOP OUTPUT IMPEDANCE vs FREQUENCY

    Frequency (Hz)

    Clo

    sed-

    Loop

    Out

    put I

    mpe

    danc

    e (

    )

    10

    1

    0.1

    0.01

    0.001

    0.0001

    10 100 1k 10k 100k

    G = +1

    G = +2

    G = +10

    G = +100

    Note: Open-LoopOutput Impedanceat f = 10kHz is 10

    CHANNEL SEPARATION vs FREQUENCY

    Frequency (Hz)

    Cha

    nnel

    Sep

    arat

    ion

    (dB

    )160

    140

    120

    100

    80

    100 1k 10k 100k

    Dual and quad devices.G = 1, all channels.Quad measured channelA to D or B to Cothercombinations yield improvedrejection.

    RL =

    RL = 2k

  • 6

    OPA134/2134/4134

    FPO

    TYPICAL PERFORMANCE CURVES (CONT)At TA = +25C, VS = 15V, RL = 2k, unless otherwise noted.

    INPUT BIAS CURRENT vs TEMPERATURE

    Ambient Temperature (C)

    Inpu

    t Bia

    s C

    urre

    nt (

    pA)

    100k

    10k

    1k

    100

    10

    1

    0.175 50 25 0 25 50 75 100 125

    Dual

    Single

    High Speed TestWarmed Up

    INPUT BIAS CURRENTvs INPUT COMMON-MODE VOLTAGE

    Common-Mode Voltage (V)

    Inpu

    t Bia

    s C

    urre

    nt (

    pA)

    10

    9

    8

    7

    6

    5

    4

    3

    2

    1

    0

    15 10 5 0 5 10 15

    High Speed Test

    OPEN-LOOP GAIN vs TEMPERATURE150

    140

    130

    120

    110

    100

    Ope

    n-Lo

    op G

    ain

    (dB

    )

    Temperature (C)

    75 50 25 0 25 50 75 100 125

    RL = 600

    RL = 2k

    RL = 10k

    CMR, PSR vs TEMPERATURE

    Ambient Temperature (C)

    CM

    R, P

    SR

    (dB

    )

    120

    110

    100

    90

    75 50 25 0 25 50 75 100 125

    PSR

    CMR

    QUIESCENT CURRENT AND SHORT-CIRCUIT CURRENTvs TEMPERATURE

    Ambient Temperature (C)

    Qui

    esce

    nt C

    urre

    nt P

    er A

    mp

    (mA

    )

    4.3

    4.2

    4.1

    4.0

    3.9

    3.8

    60

    50

    40

    30

    20

    10

    Sho

    rt-C

    ircui

    t Cur

    rent

    (mA

    )

    75 50 25 0 25 50 75 100 125

    ISC

    IQ

    OUTPUT VOLTAGE SWING vs OUTPUT CURRENT15

    14

    13

    12

    11

    10

    10

    11

    12

    13

    14

    15

    0 10 20 30 40 50 60

    Output Current (mA)

    Out

    put V

    olta

    ge S

    win

    g (V

    ) 55C

    55C

    25C25C

    85C

    85C

    125C

    125C

    25C

    VIN = 15V

    VIN = 15V

  • 7 OPA134/2134/4134

    TYPICAL PERFORMANCE CURVES (CONT)At TA = +25C, VS = 15V, RL = 2k, unless otherwise noted.

    SMALL-SIGNAL STEP RESPONSEG =1, CL = 100pF

    200ns/div

    50m

    V/d

    iv

    LARGE-SIGNAL STEP RESPONSEG = 1, CL = 100pF

    5V/d

    iv

    1s/div

    SETTLING TIME vs CLOSED-LOOP GAIN

    Closed-Loop Gain (V/V)

    Set

    tling

    Tim

    e (

    s)

    100

    10

    1

    0.11 10 100 1000

    0.01%

    0.1%

    SMALL-SIGNAL OVERSHOOTvs LOAD CAPACITANCE

    60

    50

    40

    30

    20

    10

    0100pF 1nF 10nF

    Load Capacitance

    Ove

    rsho

    ot (

    %)

    G = +1

    G = 10

    G = 1

    OFFSET VOLTAGE PRODUCTION DISTRIBUTION

    Per

    cent

    of A

    mpl

    ifier

    s (%

    )

    Offset Voltage (V)

    200

    01

    800

    160

    01

    400

    120

    01

    000

    800

    600

    400

    200 0 200

    400

    600

    800

    1000

    1200

    1400

    1600

    1800

    2000

    18

    16

    14

    12

    10

    8

    6

    4

    2

    0

    Typical productiondistribution of packagedunits.

    OFFSET VOLTAGE DRIFTPRODUCTION DISTRIBUTION

    Per

    cent

    of A

    mpl

    ifier

    s (%

    )

    Offset Voltage Drift (V/C)

    0.5

    1.5

    2.5

    3.5

    4.5

    5.5

    6.5

    7.5

    8.5

    9.5

    10.5

    11.5

    12.5

    12

    10

    8

    6

    4

    2

    0

    Typical productiondistribution of packagedunits.

  • 8

    OPA134/2134/4134

    APPLICATIONS INFORMATIONOPA134 series op amps are unity-gain stable and suitablefor a wide range of audio and general-purpose applications.All circuitry is completely independent in the dual version,assuring normal behavior when one amplifier in a packageis overdriven or short-circuited. Power supply pins shouldbe bypassed with 10nF ceramic capacitors or larger tominimize power supply noise.

    OPERATING VOLTAGE

    OPA134 series op amps operate with power supplies from2.5V to 18V with excellent performance. Althoughspecifications are production tested with 15V supplies,most behavior remains unchanged throughout the fulloperating voltage range. Parameters which vary signifi-cantly with operating voltage are shown in the typicalperformance curves.

    OFFSET VOLTAGE TRIM

    Offset voltage of OPA134 series amplifiers is laser trimmedand usually requires no user adjustment. The OPA134(single op amp version) provides offset trim connectionson pins 1 and 8, identical to 5534 amplifiers. Offsetvoltage can be adjusted by connecting a potentiometer asshown in Figure 1. This adjustment should be used only tonull the offset of the op amp, not to adjust system offset oroffset produced by the signal source. Nulling offset couldchange the offset voltage drift behavior of the op amp.While it is not possible to predict the exact change in drift,the effect is usually small.

    TOTAL HARMONIC DISTORTION

    OPA134 series op amps have excellent distortion character-istics. THD+Noise is below 0.0004% throughout the audiofrequency range, 20Hz to 20kHz, with a 2k load. Inaddition, distortion remains relatively flat through itswide output voltage swing range, providing increased head-room compared to other audio amplifiers, including theOP176/275.

    FIGURE 1. OPA134 Offset Voltage Trim Circuit.

    V+

    V

    100k

    OPA134 single op amp only. Use offset adjust pins only to null

    offset voltage of op ampsee text.

    Trim Range: 4mV typ

    OPA134 6

    7

    8

    4

    3

    2 1

    10nF

    10nF

    In many ways headroom is a subjective measurement. It canbe thought of as the maximum output amplitude allowedwhile still maintaining a very low level of distortion. In anattempt to quantify headroom, we have defined very lowdistortion as 0.01%. Headroom is expressed as a ratiowhich compares the maximum allowable output voltagelevel to a standard output level (1mW into 600, or0.7746Vrms). Therefore, OPA134 series op amps, whichhave a maximum allowable output voltage level of 11.7Vrms(THD+Noise < 0.01%), have a headroom specification of23.6dBu. See the typical curve Headroom - Total HarmonicDistortion + Noise vs Output Amplitude.

    DISTORTION MEASUREMENTS

    The distortion produced by OPA134 series op amps is belowthe measurement limit of all known commercially availableequipment. However, a special test circuit can be used toextend the measurement capabilities.

    Op amp distortion can be considered an internal error sourcewhich can be referred to the input. Figure 2 shows acircuit which causes the op amp distortion to be 101 timesgreater than normally produced by the op amp. The additionof R3 to the otherwise standard non-inverting amplifier

    FIGURE 2. Distortion Test Circuit.

    R2

    OPA134

    R1

    Signal Gain = 1+

    Distortion Gain = 1+

    R3 VO = 3Vrms

    GeneratorOutput

    AnalyzerInput

    Audio PrecisionSystem OneAnalyzer(1)

    RL1k

    IBM PCor

    Compatible

    SIG.GAIN

    DIST.GAIN R1 R2 R3

    100

    10

    1k

    1k

    1k

    10

    11

    1

    11

    101

    101

    101

    101

    NOTE: (1) Measurement BW = 80kHz

    R2R1

    R2R1 II R3

  • 9 OPA134/2134/4134

    VOUTVIN

    R1

    If RS > 2k or R1 II R2 > 2kRS = R1 II R2

    R2

    OPA134

    configuration alters the feedback factor or noise gain of thecircuit. The closed-loop gain is unchanged, but the feedbackavailable for error correction is reduced by a factor of 101,thus extending the resolution by 101. Note that the inputsignal and load applied to the op amp are the same as withconventional feedback without R3. The value of R3 shouldbe kept small to minimize its effect on the distortion mea-surements.

    Validity of this technique can be verified by duplicatingmeasurements at high gain and/or high frequency where thedistortion is within the measurement capability of the testequipment. Measurements for this data sheet were madewith an Audio Precision distortion/noise analyzer whichgreatly simplifies such repetitive measurements. The mea-surement technique can, however, be performed with manualdistortion measurement instruments.

    SOURCE IMPEDANCE AND DISTORTION

    For lowest distortion with a source or feedback networkwhich has an impedance greater than 2k, the impedanceseen by the positive and negative inputs in noninvertingapplications should be matched. The p-channel JFETs in theFET input stage exhibit a varying input capacitance withapplied common-mode input voltage. In inverting configu-rations the input does not vary with input voltage since theinverting input is held at virtual ground. However, innoninverting applications the inputs do vary, and the gate-to-source voltage is not constant. The effect is increaseddistortion due to the varying capacitance for unmatchedsource impedances greater than 2k.To maintain low distortion, match unbalanced source im-pedance with appropriate values in the feedback network asshown in Figure 3. Of course, the unbalanced impedancemay be from gain-setting resistors in the feedback path. Ifthe parallel combination of R1 and R2 is greater than 2k, amatching impedance on the noninverting input should beused. As always, resistor values should be minimized toreduce the effects of thermal noise.

    FIGURE 3. Impedance Matching for Maintaining LowDistortion in Non-Inverting Circuits.

    NOISE PERFORMANCE

    Circuit noise is determined by the thermal noise of externalresistors and op amp noise. Op amp noise is described bytwo parametersnoise voltage and noise current. The totalnoise is quantified by the equation:

    With low source impedance, the current noise term isinsignificant and voltage noise dominates the noise perfor-mance. At high source impedance, the current noise termbecomes the dominant contributor.

    Low noise bipolar op amps such as the OPA27 and OPA37provide very low voltage noise at the expense of a highercurrent noise. However, OPA134 series op amps are uniquein providing very low voltage noise and very low currentnoise. This provides optimum noise performance over awide range of sources, including reactive source imped-ances, refer to the typical curve, Voltage Noise vs SourceResistance. Above 2k source resistance, the op ampcontributes little additional noisethe voltage and currentterms in the total noise equation become insignificant andthe source resistance term dominates. Below 2k, op ampvoltage noise dominates over the resistor noise, but com-pares favorably with other audio op amps such as OP176.

    PHASE REVERSAL PROTECTION

    OPA134 series op amps are free from output phase-reversalproblems. Many audio op amps, such as OP176, exhibitphase-reversal of the output when the input common-modevoltage range is exceeded. This can occur in voltage-fol-lower circuits, causing serious problems in control loopapplications. OPA134 series op amps are free from thisundesirable behavior even with inputs of 10V beyond theinput common-mode range.

    POWER DISSIPATION

    OPA134 series op amps are capable of driving 600 loadswith power supply voltage up to 18V. Internal powerdissipation is increased when operating at high supplyvoltages. Copper leadframe construction used in OPA134series op amps improves heat dissipation compared to con-ventional materials. Circuit board layout can also helpminimize junction temperature rise. Wide copper traces helpdissipate the heat by acting as an additional heat sink.Temperature rise can be further minimized by soldering thedevices to the circuit board rather than using a socket.

    OUTPUT CURRENT LIMIT

    Output current is limited by internal circuitry to approxi-mately 40mA at 25C. The limit current decreases withincreasing temperature as shown in the typical performancecurve Short-Circuit Current vs Temperature.

    V total i R e kTRn n S n s( ) ( )= + +2 2 4

  • PACKAGING INFORMATION

    Orderable Device Status (1) PackageType

    PackageDrawing

    Pins PackageQty

    Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)

    OPA134PA ACTIVE PDIP P 8 50 Green (RoHS &no Sb/Br)

    CU NIPDAU N / A for Pkg Type

    OPA134PA3 OBSOLETE PDIP P 8 TBD Call TI Call TI

    OPA134PAG4 ACTIVE PDIP P 8 50 Green (RoHS &no Sb/Br)

    CU NIPDAU N / A for Pkg Type

    OPA134UA ACTIVE SOIC D 8 75 Green (RoHS &no Sb/Br)

    CU NIPDAU Level-3-260C-168 HR

    OPA134UA/2K5 ACTIVE SOIC D 8 2500 Green (RoHS &no Sb/Br)

    CU NIPDAU Level-3-260C-168 HR

    OPA134UA/2K5E4 ACTIVE SOIC D 8 2500 Green (RoHS &no Sb/Br)

    CU NIPDAU Level-3-260C-168 HR

    OPA134UA3 OBSOLETE PDIP P 8 TBD Call TI Call TI

    OPA134UAE4 ACTIVE SOIC D 8 75 Green (RoHS &no Sb/Br)

    CU NIPDAU Level-3-260C-168 HR

    OPA134UAG4 ACTIVE SOIC D 8 75 Green (RoHS &no Sb/Br)

    CU NIPDAU Level-3-260C-168 HR

    OPA2134PA ACTIVE PDIP P 8 50 Green (RoHS &no Sb/Br)

    CU NIPDAU N / A for Pkg Type

    OPA2134PAG4 ACTIVE PDIP P 8 50 Green (RoHS &no Sb/Br)

    CU NIPDAU N / A for Pkg Type

    OPA2134UA ACTIVE SOIC D 8 75 Green (RoHS &no Sb/Br)

    Call TI Level-3-260C-168 HR

    OPA2134UA/2K5 ACTIVE SOIC D 8 2500 Green (RoHS &no Sb/Br)

    CU NIPDAU Level-3-260C-168 HR

    OPA2134UA/2K5E4 ACTIVE SOIC D 8 2500 Green (RoHS &no Sb/Br)

    CU NIPDAU Level-3-260C-168 HR

    OPA2134UAE4 ACTIVE SOIC D 8 75 Green (RoHS &no Sb/Br)

    Call TI Level-3-260C-168 HR

    OPA2134UAG4 ACTIVE SOIC D 8 75 Green (RoHS &no Sb/Br)

    Call TI Level-3-260C-168 HR

    OPA4134PA OBSOLETE PDIP N 14 TBD Call TI Call TI

    OPA4134UA ACTIVE SOIC D 14 50 Green (RoHS &no Sb/Br)

    CU NIPDAU Level-3-260C-168 HR

    OPA4134UA/2K5 ACTIVE SOIC D 14 2500 Green (RoHS &no Sb/Br)

    CU NIPDAU Level-3-260C-168 HR

    OPA4134UA/2K5E4 ACTIVE SOIC D 14 2500 Green (RoHS &no Sb/Br)

    CU NIPDAU Level-3-260C-168 HR

    OPA4134UAE4 ACTIVE SOIC D 14 50 Green (RoHS &no Sb/Br)

    CU NIPDAU Level-3-260C-168 HR

    SN412008DRE4 ACTIVE SOIC D 8 2500 Green (RoHS &no Sb/Br)

    CU NIPDAU Level-3-260C-168 HR

    (1) The marketing status values are defined as follows:ACTIVE: Product device recommended for new designs.LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part ina new design.PREVIEW: Device has been announced but is not in production. Samples may or may not be available.OBSOLETE: TI has discontinued the production of the device.

    PACKAGE OPTION ADDENDUM

    www.ti.com 11-Aug-2009

    Addendum-Page 1

  • (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please checkhttp://www.ti.com/productcontent for the latest availability information and additional product content details.TBD: The Pb-Free/Green conversion plan has not been defined.Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirementsfor all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be solderedat high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die andpackage, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHScompatible) as defined above.Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flameretardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)

    (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak soldertemperature.

    Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it isprovided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to theaccuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to takereasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis onincoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limitedinformation may not be available for release.

    In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TIto Customer on an annual basis.

    PACKAGE OPTION ADDENDUM

    www.ti.com 11-Aug-2009

    Addendum-Page 2

    http://www.ti.com/productcontent

  • TAPE AND REEL INFORMATION

    *All dimensions are nominal

    Device PackageType

    PackageDrawing

    Pins SPQ ReelDiameter

    (mm)

    ReelWidth

    W1 (mm)

    A0(mm)

    B0(mm)

    K0(mm)

    P1(mm)

    W(mm)

    Pin1Quadrant

    OPA134UA/2K5 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1

    OPA2134UA/2K5 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1

    OPA4134UA/2K5 SOIC D 14 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.0 Q1

    PACKAGE MATERIALS INFORMATION

    www.ti.com 11-Aug-2009

    Pack Materials-Page 1

  • *All dimensions are nominal

    Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)

    OPA134UA/2K5 SOIC D 8 2500 346.0 346.0 29.0

    OPA2134UA/2K5 SOIC D 8 2500 346.0 346.0 29.0

    OPA4134UA/2K5 SOIC D 14 2500 346.0 346.0 33.0

    PACKAGE MATERIALS INFORMATION

    www.ti.com 11-Aug-2009

    Pack Materials-Page 2

  • IMPORTANT NOTICETexas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements,and other changes to its products and services at any time and to discontinue any product or service without notice. Customers shouldobtain the latest relevant information before placing orders and should verify that such information is current and complete. All products aresold subject to TIs terms and conditions of sale supplied at the time of order acknowledgment.TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TIs standardwarranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except wheremandated by government requirements, testing of all parameters of each product is not necessarily performed.TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products andapplications using TI components. To minimize the risks associated with customer products and applications, customers should provideadequate design and operating safeguards.TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right,or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Informationpublished by TI regarding third-party products or services does not constitute a license from TI to use such products or services or awarranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectualproperty of the third party, or a license from TI under the patents or other intellectual property of TI.Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompaniedby all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptivebusiness practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additionalrestrictions.Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids allexpress and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is notresponsible or liable for any such statements.TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonablybe expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governingsuch use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, andacknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their productsand any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may beprovided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products insuch safety-critical applications.TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products arespecifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet militaryspecifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely atthe Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use.TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products aredesignated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designatedproducts in automotive applications, TI will not be responsible for any failure to meet such requirements.Following are URLs where you can obtain information on other Texas Instruments products and application solutions:Products ApplicationsAmplifiers amplifier.ti.com Audio www.ti.com/audioData Converters dataconverter.ti.com Automotive www.ti.com/automotiveDLP Products www.dlp.com Broadband www.ti.com/broadbandDSP dsp.ti.com Digital Control www.ti.com/digitalcontrolClocks and Timers www.ti.com/clocks Medical www.ti.com/medicalInterface interface.ti.com Military www.ti.com/militaryLogic logic.ti.com Optical Networking www.ti.com/opticalnetworkPower Mgmt power.ti.com Security www.ti.com/securityMicrocontrollers microcontroller.ti.com Telephony www.ti.com/telephonyRFID www.ti-rfid.com Video & Imaging www.ti.com/videoRF/IF and ZigBee Solutions www.ti.com/lprf Wireless www.ti.com/wireless

    Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265Copyright 2009, Texas Instruments Incorporated

    http://amplifier.ti.comhttp://www.ti.com/audiohttp://dataconverter.ti.comhttp://www.ti.com/automotivehttp://www.dlp.comhttp://www.ti.com/broadbandhttp://dsp.ti.comhttp://www.ti.com/digitalcontrolhttp://www.ti.com/clockshttp://www.ti.com/medicalhttp://interface.ti.comhttp://www.ti.com/militaryhttp://logic.ti.comhttp://www.ti.com/opticalnetworkhttp://power.ti.comhttp://www.ti.com/securityhttp://microcontroller.ti.comhttp://www.ti.com/telephonyhttp://www.ti-rfid.comhttp://www.ti.com/videohttp://www.ti.com/lprfhttp://www.ti.com/wireless

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FEATURES SUPERIOR SOUND QUALITY ULTRA LOW DISTORTION: 0.00008% LOW NOISE: 8nV/Hz TRUE FET-INPUT: I B = 5pA HIGH SPEED: SLEW RATE: 20V/μs BANDWIDTH: 8MHz HIGH OPEN-LOOP GAIN: 120dB (600) WIDE SUPPLY RANGE: ±2.5V to ±18V SINGLE, DUAL, AND QUAD VERSIONS High Performance AUDIO OPERATIONAL AMPLIFIERS TM DESCRIPTION The OPA134 series are ultra-low distortion, low noise operational amplifiers fully specified for audio appli- cations. A true FET input stage was incorporated to provide superior sound quality and speed for excep- tional audio performance. This in combination with high output drive capability and excellent dc perfor- mance allows use in a wide variety of demanding applications. In addition, the OPA134’s wide output swing, to within 1V of the rails, allows increased headroom making it ideal for use in any audio circuit. OPA134 op amps are easy to use and free from phase inversion and overload problems often found in com- mon FET-input op amps. They can be operated from ±2.5V to ±18V power supplies. Input cascode cir- cuitry provides excellent common-mode rejection and maintains low input bias current over its wide input voltage range, minimizing distortion. OPA134 series op amps are unity-gain stable and provide excellent dynamic behavior over a wide range of load condi- tions, including high load capacitance. The dual and quad versions feature completely independent cir- cuitry for lowest crosstalk and freedom from interac- tion, even when overdriven or overloaded. Single and dual versions are available in 8-pin DIP and SO-8 surface-mount packages in standard con- figurations. The quad is available in 14-pin DIP and SO-14 surface mount packages. All are specified for –40°C to +85°C operation. A SPICE macromodel is available for design analysis. APPLICATIONS PROFESSIONAL AUDIO AND MUSIC LINE DRIVERS LINE RECEIVERS MULTIMEDIA AUDIO ACTIVE FILTERS PREAMPLIFIERS INTEGRATORS CROSSOVER NETWORKS © 1996 Burr-Brown Corporation PDS-1339C Printed in U.S.A. December, 1997 International Airport Industrial Park Mailing Address: PO Box 11400, Tucson, AZ 85734 Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 Tel: (520) 746-1111 Twx: 910-952-1111 Internet: http://www.burr-brown.com/ FAXLine: (800) 548-6133 (US/Canada Only) Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132 1 2 3 4 8 7 6 5 V+ Out B –In B +In B Out A –In A +In A V– OPA2134 8-Pin DIP, SO-8 A B 1 2 3 4 5 6 7 14 13 12 11 10 9 8 Out D –In D +In D V– +In C –In C Out C Out A –In A +In A V+ +In B –In B Out B OPA4134 14-Pin DIP SO-14 A D B C 1 2 3 4 8 7 6 5 Offset Trim V+ Output NC Offset Trim –In +In V– OPA134 8-Pin DIP, SO-8 ® OPA134 OPA2134 OPA4134 OPA134 OPA2134 OPA4134 OPA4134 OPA134 OPA2134 SBOS058
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