Amplifiers Sensors Maxim

8/2/2019 Amplifiers Sensors Maxim

1/24

1st Edition April 2009

Amplifiers And s ensors

Maxim is a registered trademark of Maxim Integrated Products, Inc. 2 009 Maxim Integrated Products, Inc. All rights reserved.

Amplifier solutionstailored for todays

applications

Tiny, low-power smartphone solutions pages 2, 3High-performance notebook solutions pages 4, 5

Efficient communications solutions pages 6, 7

Four-bump innovations page 8

Digital port protection page 11


2/24

UCSP is a trademark and MAX is a registered trademark of Ma xim Integrated Products, Inc.

2

Ambient-Light-Sensing Op AmpsCMOS Inputs, High Precision, Low-Power Shutdown

PartTotal

Supply(V)

Supply Currentper Amp(A, typ)

VOS(V, max)

CMRRat DC

(dB, typ)

PSRRat DC

(dB, typ)

InputIBIAS

(nA, max)

Unity-GainBW

(MHz, typ)RoHS

Available Package

MAX4236 2.4 to 5.5 350 50 103 120 0.5 1.7 6-SOT23

MAX4238 2.7 to 5.5 600 2 140 140 0.01 1

Proximity-Sensing Op AmpsHigh Unity-Gain Bandwidth, Rail-to-Rail I/O

PartTotal

Supply(V)

Supply Currentper Amp(A, typ) V

OS(V, max)CMRRat DC(dB, typ)

PSRRat DC(dB, typ)

Unity-GainBW(MHz, typ) Slew Rate(V/s, typ) RoHSAvailable Package

MAX4231/33 2.7 to 5.5 1100 6000 70 85 10 10 6-SC70/ultra-thin DFN/UCSP,10-MAX /UCSP

Ambient light sensingOp amps

Speaker amplificationClass AB/D amps

Video outputFilter amps

Accessory detectionComparators

SIM card bufferingComparators

DC-power detectionComparators

AudioSubsystem codecs

Battery monitoringCurrent-sense amps

Proximity sensingOp amps

Tiny, low-power, high-performancesmartphone solutions

Maxim offers the widest selection of low-power, high-performance amplifiers and comparators forportable products. Due to Maxims miniature packaging technology, these highly integrated op amps, current-sense amps, and comparators are available in tiny footprints of 2mm x 2mm or smaller to save space and cost.

www.maxim-ic.com/ Audiowww.maxim-ic.com/ Video


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BATTERY CURRENT MONITORING

ADC

VCC < VBAT

VBATVBAT

C

LOAD

MAX9938

BATTERY VOLTAGE DETECTION

C

LOAD

VREF

VCC

VDD

MAX9018 VOLTAGE OK3V < V BAT < 4.2V

ULTRA-LOWCURRENT

AMBIENT LIGHT SENSING

C

ADC

IAMBIENT

IINFRARED

MAX4236

IR PROXIMITY SENSING

C

C

ADC

50RR

VCC

VREF

Rx

Tx

MAX4231

ACCESSORY DETECTION SIM CARD BUFFER

RESET

CLK

DATA

GND

VCC

VDD

SYSTEMCONTROLLER

SIMCARD

VDD

VCC

VCC

REF

IN

ACCESSORY

VDD

OUT MAX9075

VREF

HIGH BANDWIDTHFOR AC SIGNAL

GAIN

MAX9060

DC-Power-/Headphone-Detecting and SIM Card Buffer ComparatorsLow Current Consumption

Battery-Monitoring Current-Sense AmpsLow Power

PartPropagation

Delay(s, typ)

InputCMVR to

Negative RailRail-to-Rail

InputTotal

Supply(V)

Supply Currentper Comparator

(A, max)3V RoHSAvailable Package

MAX9018 30

1.8 to 5.5 0.9

8-SOT23MAX9027/28 14 1.8 to 5.5 1 6-UCSPMAX9075 5.8 2.1 to 5.5 5.2 5-SC70MAX9119/20 14 1.8 to 5.5 0.8 5-SC70MAX906064 25 1.0 to 5.5 1.1 4-UCSP, 5-SOT23

Part CMVR(V)VCC(V)

ICC(A, typ)

VSENSE_FS(mV,

recommended)VOSat +25C

(V, max)AV

(Gain)Gain Accuracy

at +25C(%, max)

-3dB BW(kHz) Package

MAX4073 2 to 28 3 to 28 500 100 100, 20, 50

4.5 1700, 1600, 1800 5-SC70MAX4372 0 to 28 2.7 to 28 30 100, 150 1300 2.5 200, 275, 110 3 x 2 UC

MAX9938 1.6 to 28 1.6 to 28 0.5 500

200V/V, 100V/V,50V/V, 20V/V 0.5 30, 60, 125 4-UCSP

MAX9610 1.6 to 5.5 1.6 to 5.5 0.6 100V/V,50V/V, 20V/V 0.8 60, 110, 170 6-DFN


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Increasing performance in notebookapplications

Op amps, comparators, and current-sense amps are used in a wide range of notebook applications. As istrue for most consumer equipment, high-performing, space-efficient solutions are a necessity.

Precision current sensing enables efficient system controlBattery life is a primary concern in todays portable

equipment. Notebooks, in particular, must efficiently managea growing number of resource-intensive applications. Precisioncurrent-sense amplifiers can be used to monitor systemperformance and facilitate efficient, dynamic system control.

ASIC

10mV FULL SCALE

1.5V

TO SYSTEMCONTROLLER

MAX4209H

Protect sensitive low-voltage digital ICsDigital communication ports are often susceptible

to damage from high-voltage faults and ESD strikes. Anovervoltage-protection IC can provide critical protectionfor communication protocols that cannot afford only astandard means of fault protection, such as large seriesresistors or large line capacitances.

3VNOTEBOOK

ADAPTER PROVIDING~20VDC

The MAX9940 protects the C from an overvoltage condition,and then automatically resets when the fault condition ends.

MAX9940 C

Gigabit Ethernetconnector detectionComparators

Microphone preamplification/filtering/amplifiersOp amps/audio amps

Ambient light sensingOp amps

Video andaudio outOp amps

Boosted ampsAudio ampsAudio subsystems

Headphone and speaker amps

Battery managementCurrent-sense amplifiers

Processor/ASIC current monitoringCurrent-sense amps/op amps


5/245

MAX9922/MAX9923 Ultra-precision, 10V (max) input o

(VOS) over temperature 0.5% (max) full-scale gain accurac 1.9V to 28V input common-mode vCM) 2.85V to 5.5V single-supply operati Space-saving, 10-pin MAX packag

High-performance, compact solutions fornotebook applications

Overvoltage protector for low-voltage digital ICs

RSB

RS-

RS+

N.C.

GND

VDD

R2

R1

OUT

FB

REF

SHDN MAX9922

MAX9940 28V protection on EXT Extended ESD protection 13A quiescent supply current 2.2V to 5.5V single-supply operatio Small, 5-pin SC70 package

EXT

GND

INTN

PROTECTIONCIRCUIT

VCC

P

MAX9940

Dual op amp with industry-leading RF immunity

MAX4232 Lab-tested RF immunity 10MHz gain-bandwidth product 30mA output-drive capability 2.7V to 5.5V single-supply operatio Space-saving, 8-pin SOT23 package

47k

4.7k

4.7k

1 F

MIC L

MIC R

1 F

100pF

AUDIO L

AUDIO R

47k

100pF

MAX4232

Ultra-precision, high-side current-sense amplifiers


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Enabling efficient telecommunicationsCommunications equipment, such as base stations and GPON, require high-performing integrated

solutions. RF detectors, current monitors, and op amps are commonly used for monitoring and control in theseapplications.

Highly integrated RF detectors monitor/control RF power levels in PAsRF detectors are used to monitor and control power

amplifier (PA) output power. Specifically designed forcommunications equipment, these highly integrateddevices greatly simplify PA control-loop design.

VCC

OUT

N.C.

GNDCCLPF

DAC

50

RFIN

SHDN

CLPF

SET

0.1 F

RF INPUT

VCC

CC

ANTENNA PA

MAX9930 MAX9931MAX9932

Current monitors efficiently control FET DC bias in base stationsH i g h - v o l t a g e , p r e c i s i o n c u r r e n t - s e n s e

amplifiers are integral to efficient control incommunications equipment. For example, current-senseamps can be used to control the DC-bias point forbase-station FETs, thereby controlling the AC gain forRF signals.

MAX4080

C

RFOUT

RFIN

VCC = 5V

VDRAIN = 30V


7/247

Tiny, integrated solutions forcommunications equipment

Current-sense amps for FET DC-bias control in base stations

MAX9930/MAX9931/MAX9932 2MHz to 1.6GHz frequency Fast response: 70ns in 10dB 10mA output sourcing capabi Low power: 17mW at 3V (ty Space-saving, 8-pin MAX p

BUFFER

GND

OUTPUT-ENABLEDELAY

LOGDETECTOR

x1

V-I*

SHDN

VCC

RFIN

SET

CCLPF

OUTgmBLOCK

*INVERTING VOLTAGE TO CURRENT CONVERTER

MAX9930 MAX9931MAX9932

RSENSE

VSENSEILOAD

OUT

RG1 RG2

RS-

Q1

RS+

CURRENTMIRROR

A1

IA2A3A2

MAX4080 MAX4081

MAX4080 MAX4081 Wide, 4.5V to 76V input co

mode range 0.1% full-scale accuracy

Low, 100V input VOS 75A supply current Space-saving, 8-pin MAX p

RF power detector for ASK/OOK modulation

gmBLOCK

CCLPF

OUT

LOGDETECTOR

RFIN

ASK

MAX9933 MAX9030

BUFFER

MAX9933 2MHz to 1.6GHz frequency Fast response: 70ns in 10dB 10mA output sourcing capabi Low power: 17mW at 3V (ty Space-saving, 8-pin MAX p

RF power-detecting controllers for PA control in base stations


8/24

MAX9060 low-power comparator Low -0.3V to +5.5V operation Available with internal or external

reference 15s propagation delay -40C to +85C extended temperature

range

8

Great things come in small packagesUltra-low power in tiny, 1mm x 1mm, 4-bump UCSP packages

MAX9938 low-power current-sense amp Wide 1.6V to 28V VCM

Ideal for portable and notebook ap

Low 500V (max) VOS Enables use of small sense resistor Four gain versions available

25V/V (MAX9938T) 50V/V (MAX9938F) 100V/V (MAX9938H) 200V/V (MAX9938W)

-40C to +85C extended temperatur

REF

IN

INTERNALPULLUP

VDD

I/OOUT

LDO 0.9VTO 5.5V

MAX9060 MAX9938

ILOAD

VBATT =1.6V TO 28V

VDD = 3.3V

RSENSE

RS+

POUT

GND

RS-

C

LOAD

ADC

Ultra-low, 1A (max)

quiescent currentover temperature

C


9/249

38V op amps build low-power systemswithout compromising performanceMinimal power consumption with superior precision or low noise

High-voltage, precision, low-power op amps

The MAX9943/MAX9944 op amps deliversuperior precision, while minimizing powerconsumption. These devices are ideal for sensorsignal conditioning, high-performance industrialinstrumentation, and loop-powered systems.

6V to 38V single-supply operation,

3V to 19V dual-supply operation 100V (max) VOS 0.4V/C offset drift 2.4MHz gain-bandwidth product 20mA output current 550A supply current per amp

RSENSERLOAD

-18V

+18V

1/2

VREF

MAX9944

MAX9944

1/2

38V, low-noise, MOS-input, low-power op amp

The MAX9945 delivers low-noiseperformance, while minimizing powerconsumption. This device is particularly wellsuited for portable medical and industrialapplications that require low-noise analogfront-ends.

4.75V to 38V single-supply operation,2.4V to 19V dual-supply operation

1fA/Hz input-current noise density 15nV/Hz input-voltage noise density Low, 50fA input bias current 3MHz gain-bandwidth product 400A supply current

MAX9945

PHOTODIODE

SIGNALCONDITIONING/

FILTERS

IN-

IN+

ADC

+15V

OUT

VEE

VCC

-15V


10/2410

PGA with SPI bus brings all of yourapplications within rangeFull-featured PGA has internal op amp and 16V-protecteddifferential inputs

Industrial applications requiring wide gain variation and high signal bandwidth can benefit from usingthe MAX9939 programmable-gain amplifier (PGA). It features a wide gain range from 0.2V/V to 157V/V,programmable input offset-voltage trim, high signal bandwidth (~2MHz at all gains), and an internal op ampthat can be used as an active filter or to create differential outputs.

A

VCC

VCC /2

VCC

VCC /2

LVL

VCC

VCC /2

INA+

INA-

B

OUTA

INB

OUTB

ASIC

CS

DOUT

SCLK

GND

VCC

GAIN SHUTDOWN

INPUTOFFSET-VOLTAGE

TRIM

MAX9939

SCLK

SPI REGISTERS

DIN

ADC

CS

Features

Programmable gain and programmable VOS Differential inputs with high common-moderejection and protection to 16V

Single-supply VCC , but can amplify bipolarinput signals

Integrated op amp for application flexibility SPI bus with 10MHz operation

Applications

Sensorless motor control Sonar and data acquisition Medical instrumentation Sensor signal conditioning

SPI is a trademark of Motorola, Inc.


11/241

Signal-line overvoltage protectorprovides peace of mindProtection from high-voltage faults and ESD strikes for low-voltagedigital communication ports

The MAX9940 provides protection for low-voltage devices connected to digital communication linessuch as 1-Wire and I2C protocols. When a high-voltage fault occurs, the MAX9940 quickly isolates the low-voltage device from the fault condition and automatically resets when the fault ends. In addition, the MAX9940provides up to 4kV IEC 61000-4 contact ESD protection.

NOTEBOOK ADAPTER

C

EXT

GND

INT

1-WireDEVICE

2k

20V

N

PROTECTIONCIRCUIT

ENABLEVCC

DATA

P

NOTEBOOKBATTERYCHARGER

LOAD

VDD3.3V

Rx

Tx

Rx

Tx

MAX9940

Features

28V protection on EXT Extended ESD protection 4kV IEC 61000-4 contact on EXT

13A quiescent supply current 60ns fault reaction time -40C to +125C temperature range

Applications

Notebooks Industrial devices Portable devices

1-Wire is a registered trademark of Maxim Integrated Products, Inc.


12/2412

Where to turn when speed andpower matterSingle/dual CMOS op amps provide industrys best speed-to-power ratio

The single MAX9914/MAX9915 and dual MAX9916/MAX9917 op amps feature a maximized ratio ofgain bandwidth to supply current, and are ideal for battery-powered applications.

Features High 1MHz gain bandwidth at 20A Ultra-low 20A supply current 1.8V to 5.5V single-supply operation Ultra-low, 1pA input bias current Rail-to-rail input and output voltage ranges Low 200V VOS Low 0.001A shutdown current High-impedance output during shutdown

(MAX9915/MAX9917) Unity-gain stable

Available in tiny SC70, SOT23, andMAX packages

Applications Portable medical devices Portable test equipment Handheld consumer equipment Data-acquisition equipment Notebooks RF tags

60

50

40

30

20

10

0

SPEED-TO-POWER RATIO AT 1000kHz

S P E E D - T

O - P

O W E R R A T I O

( k H z / A )

COMPETITION

MAX9914/MAX9917

Over 2x betterthan the

competition!

SPEED-TO-POWER RATIO


13/241

Industrys first two-wire Hall-effectsensor interface saves space and cost inautomotive applicationsDual Hall-effect sensor interface includes diagnostics

The MAX9921 provides a single-chip solution for interfacing two Hall-effect sensors to a low-voltagemicroprocessor (P). This device supplies and monitors the current drawn by two Hall-effect sensors, filters thsensed current level, and outputs the corresponding logic level. The MAX9921 includes input diagnostics andfault protection and is ideal for speed detection in automotive applications, such as window lifters and electricsunroofs.

C

ELECTRIC MOTOR

N

S

DIAG

OUT1

OUT2

GND

DIAGNOSTICS

CH1

CH2

VBAT

FILTER

MAX9921

Robust design survivesshorts to ground,

shorts to battery, and15kV (HBM) strikes

HALL-EFFECTSENSOR

Withstands up to60V load dumps

Output filtereliminates glitching

Integrated diagnosticsdetect shorts, opens, and

low-battery conditions

High-side current-sensearchitecture eliminatesneed for a ground returnwire without introducing

ground shift

ECU

Improves performance and reliability Protects Hall-effect sensor inputs from shortsto ground Integrated diagnostics detect shorts, opens,

and battery faults Withstands up to 60V load dump Integrated deglitching output filter Operates with 2V ground shifts between

Hall-effect sensor and MAX9921

Saves space and cost High-side, current-sense architecturethe need for a ground return wire Eliminates up to 10 discrete compon Two complete sensor interface chann

single, 3mm x 5mm MAX package

Ideal for window lifters(antipinch control), magnetic

relays, automatic doors,seatbelt buckles, electric

sunroofs, poweredliftgate controllers

Automotivetemperature

range


14/2414

Industrys first differential VR sensorinterface integrates adaptive andzero-cross thresholdsImproves performance and reliability in automotive engine applications

The MAX9924MAX9927 variable reluctance (VR) sensor interfaces are ideal for engine crank-shaft andcam-shaft speed and phase detection. A zero-cross trigger allows reliable center-of-tooth detection, while theintegrated differential amplifiers adaptive threshold and high CMRR provide excellent noise immunity. TheMAX9924MAX9927 are designed to interface to both single-ended and differential-ended VR sensors.

C

DIFFERENTIALAMPLIFIER

ADAPTIVE/MINIMUMAND

ZERO-CROSSINGTHRESHOLDS

INTERNAL/EXTERNALBIAS VOLTAGE

ENGINE BLOCKMAX9924

VR SENSOR

Features Differential input stage for new-generation

VR sensors Internal adaptive threshold arm available Externally configurable threshold arm

level possible Precision amplifier and comparator allow small-signal detection

Zero-crossing detection provides accurate phaseinformation

-40C to +125C automotive temperature range Single/dual versions available in 10-pin MAX/

16-pin QSOP packages

Applications Crank-shaft sensors Cam-shaft sensors Turbine-shaft speed sensors Vehicle speed sensors


15/241

High-accuracy current-sense ampsprovide high performance in automotivemotor and solenoid applicationsBidirectional current-sense amps have wide -20V to +75V V CMrange

The MAX9918*/MAX9919*/MAX9920* are the industrys highest accuracy, bidirectional current-senseamps. These robust devices offer a very wide, -20V to +75V input common-mode range, and can withstandreverse-battery conditions and load-dump transients. They are ideal for current sensing in automotive applicationssuch as electric power steering (EPS) systems or automatic transmission systems.

SHDN

RS-

RS+

GND

ADJUSTABLE GAIN

OUT

FB

REF

R2

ADC

VCC

VCC

C

R1REFIN

A

INPUT-STAGELEVEL

SHIFTER

MAX9918*

MAX9920*

VBAT

RSENSE1

M

2

2

1

Features -20V to +75V VCMrange Low 400V (max) VOS 0.4% (max) gain accuracy Uni-/bidirectional current sensing 900A supply current 1A shutdown Rail-to-rail output -40C to +125C automotive

temperature range

Applications H-bridge motor-current sensing inelectric power steering

Super-cap charging for hybrid cars Solenoid current sensing in automat

transmissions Smart fuse boxes Seat heaters

*Future productcontact the factory for availability.


16/2416

Ultra-precision current monitoring fornotebook power managementLow VOS with high gain accuracy enables precise current measurementsat very small sense voltages

The MAX9922/MAX9923 current-sense amps have ultra-low input VOS. When VOS is low, smallerVSENSEvoltages can be measured accurately. This allows the use of small sense resistors, thus reducing powerdissipation and easing system design.

ADC

LOAD

C

GNDSHDN

RS-

RS+ REFREF

FB

OUT

RSB

BATTERY

VCC

VCC= 3.3V

Shutdown pin and power-downmodes draw just 1 A forpower-sensitive battery-

operated applications

CMOS input-bias currentsallow flexible R-C filterdesign with no errors

High 1.9V to 28V common-modevoltage allows high-side

sensing, even with 3.3V supply

REF pin allowsbidirectional

current sensing

Internal matched resistors for0.1% gain accuracy (max); adjustable

version has low gain drift due toPPM-matched external resistors

RSB pin allows CMOSinput-bias currents

Precision 20 V VOS allowsuse of ultra-small

10mV sense voltage

MAX9922 MAX9923

Features Ultra-precision VOS over temperature 0.5% (max) full-scale gain accuracy Bidirectional or unidirectional ISENSE Multiple gain options available 1.9V to 28V VCM 2.85V to 5.5V supply voltage

Applications Notebook/desktop power management Handheld Li+ battery current monito Precision current sources


17/241

Current-sense amps for demandingapplications

Tiny current-sense amp is also robustThe tiny MAX9937 current-sense amp is extremely versatile and robust, making it ideal for a large number

automotive ECU and car battery current-monitoring applications. It is available in a small 2mm x 2mSC70 package, consumes just 20A of supply current, and can withstand 40V load-dump spikes for 1s andreverse-battery conditions continuously.

ADC

MCU

VOUT

VCC= 3.3V

AIN

DINSIGN

DC-DCSWITCHINGREGULATOR

Pin compatible with MAX4372;only 1mm x 1.5mm UCSP

packagelike 0603 resistor!

Current output provides immunityfrom ground-bounce by enabling local

termination near ADC

Resistor converts outputcurrent to voltageinfinite

gain granularity!

Sign output allows use of fulldynamic range of ADC

Low 20 A quiescent current

Precision 0.5mV VOS over 0 to 28V common-mode voltage Enables accurate measurement even if rails are shorted to ground Allows smaller sense resistor (lower drop)

MAX9928

MAX9929

Features Multiple resistor programmable gain options Can use input and output filters for EMC

robustness and reliability Reverse-battery protection (MAX9937) Bidirectional operation (MAX9928/MAX9929)

Applications Automotive battery and ECU current

(MAX9937) Power converters for automotive auto

stop engines (MAX9937) Portable consumer devices (MAX9928

SIGN of times to comeAvailable in a 1mm x 1.5mm UCSP package, the MAX9928/MAX9929 are bidirectional current-sense amps

with a SIGN bit output. This allows the input-signal range of ADCs to be fully utilized, regardless of load currdirection, or whether the battery is charging or discharging. Optional current-output format allows fine gagranularity.

www.maxim-ic.com/ CurrentSenseAmps


18/2418

How to obtain the best performancefrom current-sense ampsCurrent-sense amp errors can affect overall performance if not properlytaken into account

RSENSE

VCMVCC

VOUTADC

LOAD

ILOAD

RS+

CSA

RS-

A small sense resistor (2m to 100m ) converts the loadcurrent into a differential voltage (V SENSE). The lower theVOS, the smaller the size of the sense resistor.

The VOL (output voltage low)specification indicates that theoutput does not really decrease tozero, even for VSENSE= 0 and VOS = 0.

Differential amplifier VOUT= G x VSENSE Gain error (GE) affects the

full-scale measurement

VOUT

VSENSE VSENSE

VOUT

VOL

VOUT

VSENSE

Effect of V OS Effect of GE Effect of V OL

VOS affects the measurement of the low current range. It is important to have low VOS, so as to reduce thesize of the sense resistor. Low VOS also increases the dynamic range of current measurement. Gain error affectsthis measurement in the higher current ranges and at full-scale. Sense resistor tolerance affects the total errorof the measurement, and total error is given by the combination of VOS, GE, and RSENSEtolerance as per theequations below:

VOUT = (G |GE|) x (V SENSE |V OS|) VSENSE= ILOADx RSENSE


19/241

Current-sense amp application notesPerformance of Current-Sense Amplifiers with Input Series Resistorswww.maxim-ic.com/ AN3888

Protect Current-Sense Amplifiers Against Overvoltage Transientswww.maxim-ic.com/ AN4438

Extend Current-Sense Amplifiers Input Range Down to 0Vwww.maxim-ic.com/ AN4078

Three Is a Crowd for Instrumentation Amplifierswww.maxim-ic.com/ AN4034

Measuring the Output Jitter of the MAX999 Comparatorwww.maxim-ic.com/ AN4061

Two Methods for Shutting Down a Current-Sense Amplifierwww.maxim-ic.com/ AN4235

Current Sensing on a Negative Voltage Supply Rail, Using a Precision Instrumentation www.maxim-ic.com/ AN4050

Im OOK. Youre OOK?www.maxim-ic.com/ AN4439

Autozero Noise Filtering Improves Instrumentation Amplifier Outputwww.maxim-ic.com/ AN4440

Zero-Drift IA Takes the Strain Out of Sensor Measurementswww.maxim-ic.com/ AN4437

A Fully Integrated, Robust Solution for Interfacing with Hall-Effect Sensorswww.maxim-ic.com/ AN4220

Precision Instrumentation Amplifiers with Rejustors Solve High-Gain Applicationswww.maxim-ic.com/ AN4321

Keep Power Consumption in Check with Low-Power Comparators that Autosense PlAccessorieswww.maxim-ic.com/ AN4327


20/2420

*All devices operate in the -40C to +125C automotive temperature range, except the MAX4291/MAX4292/MAX4294, which operate in the -40C to +85C extended tem

General-purpose operational amplifiers www.maxim-ic.com/ amps-sensors

Part*

OpAmps perPackage

Rail-to-Rail

SupplyVoltage(V)

SupplyCurrentper Amp(mA, typ)

VOS (V,max)

Input BiasCurrent(nA, max)

UnityGBW(MHz)

SlewRate(V/s)

InputCMVR(V)

InputVoltageNoise(nV/Hz)

SmallestAvailablePackages

LMX321/58/24 1, 2, 4 Output 2.3 to 7 0.105 6000 50 1.3 1 (VEE- 0.2) to(VCC- 0.9)

66 SC70/SOT23/TSSOP

MAX423034 1, 2, 4 Output, input 2.7 to 5.5 1.1 6000 0.05 10 10 VSS to VDD 12 SC70/SOT23/UCSP/TSSOP

MAX4245/46/47 1, 2 Output, input 2.5 to 5.5 0.32 1500 50 1 0.4 (VSS - 0.1) to(VDD+ 0.1)

52 SC70/SOT23

MAX4291/92/94 1, 2, 4 Output, input 1.8 to 5.5 0.1 2500 60 0.5 0.2 VEEto VCC 70 UCSP/TSSOPMAX440003 1, 2, 4 Output 2.5 to 5.5 0.32 4500 0.1 0.8 1 VSS to

(VDD- 1.4) 36

SC70/SOT23/TSSOP

MAX448083 1, 2, 4 Output 2.5 to 5.5 0.045 5500 0.1 0.14 0.08 VSS to(VDD- 1.3)

100 SC70/SOT23/TSSOP

MAX4484/86/87 1, 2, 4 Output 2.7 to 5.5 1.9 5000 0.1 7 20 VSS to(VDD- 1.3)

29 SC70/SOT23/TSSOP

MAX4490/91/92 1, 2, 4 Output, input 2.7 to 5.5 0.8 10,000 2.5 10 10 VEEto VCC 12 SC70/SOT23/TSSOP

MAX4493/9 4/95 1, 2, 4 Output 4.5 to 11 0.77 5000 1000 5 3 (VEE- 0.2) to(VCC- 1.5)

8 SC70/SOT23/TSSOP

Instrumentation amplifiers

Part

SupplyVoltage(V)

Rail-to-Rail

Input CMRR(V)

Supply Currentper Op Amp(A, typ)

VOS (V,max)

GainError(%, max)

UnityGBW(kHz)

TempRange(C) Package

MAX4208/09 2.85 to 5.5 Output (VSS - 0.1) to(VDD- 1.3)

750 20 0.25 750 -40 to +125 8-MAX

MAX4460/61/62 2.85 to 5.25 Output (VSS - 0.1) to(VDD- 1.7)

680 425 0.35 2500 -40 to +85 6-TDFN, 6-SOT28-SO

MAX419497 2.7 to 7.5 Output (VEE- 0.2) to(VCC- 1.1)

93 450 0.01 250 -40 to +85 8-SO

Programmable gain amplifiers

Part

InterfaceType

GainRange

GainError(%, max)

GainTemperature-Coefficient(ppm/C, max)

SupplyVoltage(V)

SupplyCurrent(mA)

GBWRange(MHz)


MAX9939 SPI 0.2V/V to 157V/V 0.38 17 2.9 to 5.5 3.4 2.15 to 279 -40 to +125 10-MA


21/242

Operational amplifiers www.maxim-ic.com/ amps-sensors

*Unity-gain stable versions have GBW of 9kHz. Decompensated versions provide GBW of 40kHz with a minimum stable gain of 5V/V.**MAX4036/MAX4038 are available in A grade versions that operate from -40C to +125C.

*Unity-gain stable versions have GBW of 1.7MHz. Decompensated versions provide GBW of 7.5MHz with a minimum stable gain of 5V/V.**Unity-gain stable versions have GBW of 1MHz. Decompensated versions provide GBW of 6.5MHz with a minimum stable gain of 10V/V.

*Unity-gain stable versions of MAX4249MAX4257 have GBW of 3MHz. Decompensated versions provide GBW of 22MHz with a minimum stable gain of 10V/V.**Unity-gain stable versions of MAX4475MAX4478/MAX4488/MAX4489 have GBW of 10MHz. Decompensated versions provide GBW of 42kHz with a minimum sta

High precision

Part

OpAmps perPackage

Rail-to-Rail

SupplyVoltage(V)


VOS (V, max)

VOSDrift(V/C)


UnityGBW(MHz)


MAX4236/37 1 Output 2.4 to 5.5 350 20 0.6 0.5 1.7/7.5* -40 to +85 6-SOT23, 8-MAMAX4238/39 1 Output 2.7 to 5.5 600 2 0.01 0.001 (typ) 1/6.5** -40 to +125 6-SOT23, 6-TDF

Low voltage, low power

Part

OpAmps perPackage Rail-to-Rail

SupplyVoltage(V)



UnityGBW(kHz)

Temp Range(C) Package

MAX4464/70/71/72 /74 1, 2, 4 Output 1.8 to 5.5 0.75 1.5 9/40* -40 to +85 5-/8-SOT23, 5-SC70, 88-/14-SO, 14-TSSOP

MAX4036 39 1, 2 Output 1.4 to 3.6 0.8 0.01 4 -40 to +85/+125** 5-SC70, 6-SOT23, 8-/109-UCSP, 8-/10-MAX

MAX991013 1, 2 Output, input 1.8 to 5.5 4 0.01 200 -40 to +85 5-/6-SC70, 8-SOT23, 10MAX991417 1, 2 Output, input 1.8 to 5.5 20 0.01 1000 -40 to +85 5-/6-SC70, 8-SOT23, 10MAX4289 1 Output 1.0 to 5.5 9 15 17 -40 to +85 6-SOT23, 8-SO

Low noise

Part

OpAmps perPackage

Rail-to-Rail

SupplyVoltage(V)



UnityGBW(MHz)

SlewRate(V/s)

Input VoltageNoise at 1kHz(nV/Hz) Package

MAX424957 1, 2, 4 Output 2.4 to 5.5 420 0.1 3/22* 0.3/2.1* 8.9 5-SOT23, 8-/10-MA8-/10-UCSP, 8-/14-SO

MAX447578/8 8/89 1, 2, 4 Output 2.7 to 5.5 2500 0.15 10/42** 3/10** 4.5 6-SOT23, 8-MAX8-/14-SO, 14-TSSOP

MAX410/12/14 1, 2, 4 2.4 to 5.25 2500 150 28 4.5 1.5 8-/14-DIP, 8-/14-SO, 8

High voltage

Part

OpAmps perPackage

SupplyVoltage(V)


UnityGBW(MHz)

VOS (V, max)

VOS Drift(V/C)

InputBias Current(nA, max)

Input VoltageNoise at 10kHz(nV/Hz)


MAX994 3/44 1, 2 6 to 38 550 2.4 100 0.4 -40 to +125 6-TDFN/8-MAX,8-TDFN/SO

MAX9945 1 4.75 to38

400 3 5000 2 0.05 15 -40 to +125 6-TDFN8-MAX


22/2422

Industrys broadest line of current-sense amplifiers www.maxim-ic.com/ amps-sensors

Power sense

Part Features

InputVoltage(V)

SupplyCurrent(A)

VOSat+25C(V, max) Gain

GainAccuracyat +25C(%, max)

Bandwidth(kHz)

TempRange(C)

SmallestAvailablePackage

MAX4210 Power + current monitor 4 to 28 670 V/W and V/V 1.5 220 -40 to +85 TDMAX4211 Integrated reference + two comparators 4 to 28 670 V/W and V/V 1.5 220 -40 to +85 T

High voltage

Part Features

InputVoltage(V)

SupplyCurrent(A)



Bandwidth(kHz)

TempRange(C)


MAX9918/19/20 Automotive grade -20 to +75 900 400 Adj, 45V/V, 90V/V 0.4 250 -40 to +125 SMAX4080/81 Uni-/bidirectional, precision 4.5 to 76 75/100 600 5V/V, 20V/V, 60V/V 0.6 250 -40 to +125

Bidirectional

Part FeaturesInputVoltage(V)

SupplyCurrent(A)



Bandwidth(kHz)

TempRange(C)


MAX9922/23 Ultra-precision VOS 1.9 to 28 700 10 Adj, 25V/V, 100V/V,250V/V

0.5 50 -40 to +85 MAX

MAX9928/29 SIGN output, current output -0.1 to +28 20 400 Adj, 20V/V, 50V/V 1 150 -40 to +125 UMAX406972 Integrated reference, precision 1.35 to 24 100 250 50V/V, 100V/V 1 100 -40 to +125 T

Unidirectional

Part Features

InputVoltage(V)

SupplyCurrent(A)



Bandwidth(kHz)

TempRange(C)

SmallestAvailablePackage(s)

MAX9938 Ultra small, low power 1.6 to 28 1 500 25V/V, 50V/V, 100V/V 0.5 125 -40 to +85 UCSP

MAX9937 Automotive grade 4 to 28 20 1200 20V/V 1.5 350 -40 to +125 SC70MAX4073 Ultra small 2 to 28 500 1000 (typ) 20V/V, 50V/V, 100V/V 1 1700 -40 to +125 SC70MAX4173 Wide common-mode range 0 to 28 420 3000 20V/V, 50V/V, 100V/V 2.5 1400 -40 to +85 SOT2MAX4372 Low power 0 to 28 30 800 20V/V, 50V/V, 100V/V 2.5 200 -40 to +85 UCSPMAX4376/77/78

Single/dual/quad 0 to 28 1000 20V/V, 50V/V, 100V/V 2.5 1700 -40 to +125 SOT23/TSSOP

MAX4373/74/75

Integrated compara tor(s) +reference, low power

0 to 26 50 1000 20V/V, 50V/V, 100V/V 1.7 120 -40 to +85 MAX

MAX4172 Precision, current output 0 to 32 800 750 10mA/V 2.0 800 -40 to +85 MAX


23/242

Low voltage

PartComparatorsper Package

PropagationDelay(ns, typ)

Rail-to-Rail Input

SupplyVoltage(V)

Supply Currentper Comp(A, typ)

VOS (mV, typ)

VOS (mV, max)

LogicOutput


MAX906064 1 25,000 1 to 5.5 1 1.3 6 Open-drain/push-pull

-40 to +85 4-UCSP/5-SOT23

MAX906 5 2 15,000 1 to 5.5 1 Push-pull -40 to +85 4-UCSP/5-SOT23

MAX9100 1 3700 1.0 to 5.5 6 3 10 CMOS -40 to +85 5-SOT23, 8-MAX9101 1 3700 1.0 to 5.5 6 3 10 Open drain -40 to +85 5-SOT23, 8MAX9017/19 2 30,000 1.8 to 5.5 0.07 0.15 5 CMOS -40 to +85 8-SOT23MAX9018/20 2 30,000 1.8 to 5.5 0.07 0.15 5 Open drain -40 to +85 8-SOT23MAX9027 1 40,000 1.8 to 5.5 1 0.3 5 CMOS -40 to +85 6-UCSPMAX9028 1 45,000 1.8 to 5.5 1 0.3 5 Open drain -40 to +85 6-UCSPMAX9117/19 1 40,000 1.8 to 5.5 0.68 1 5 CMOS -40 to +85 5-SC70MAX9118/20 1 45,000 1.8 to 5.5 0.68 1 5 Open drain -40 to +85 5-SC70

General purpose

Part

Comparatorsper Package


SupplyVoltage(V)


VOS (mV, typ)

VOS (mV, max)

LogicOutput


LMX331 1 100 1.8 to 5.5 60 0.2 7 Open drain -40 to +125 5-SOT23, 5-SC70

MAX9077 2 580 2.1 to 5.5 3 1 8 CMOS, TTL -40 to +85 8-SOT23, 8-MAXMAX9021 1 3000 2.5 to 5.5 2.8 1 8 TTL/CMOS -40 to +125 5-SOT23, 5-SC70MAX9022 2 3000 2.5 to 5.5 2.8 1 8 TTL/CMOS -40 to +125 8-SO, 8-MAX, 8-MAX9024 4 3000 2.5 to 5.5 2.8 1 8 TTL/CMOS -40 to +125 14-TSSOP, 14-SO

High speed

PartComparatorsper Package


Rail-to-Rail Input

SupplyVoltage(V)


VOS (mV, typ)

VOS (mV, max)

LogicOutput


MAX9600/01 2 0.5 5 12,000 1 5 ECL/PECL -40 to +85 20-TSSOPMAX999 1 4.5 2.7 to 5.5 5000 0.5 1.5 CMOS, TTL -40 to +85 5-SOT23MAX9010 1 5 4.5 to 5.5 900 1 5 TTL -40 to +85 6-SC70MAX9203 1 7 5 to 10, 5 1300 1 4 TTL -40 to +85 8-SOT23, 8-SMAX9109 1 25 4.5 to 5.5 350 0.5 1.6 TTL -40 to +85 6-SC70, 6-SO

8-SOMAX9140 1 40 2.7 to 5.5 165 0.5 2 TTL/CMOS -40 to +85 5-SC70, 5-SOT

Comparators www.maxim-ic.com/ amps-sensors


24/24

Amps/Sensors-1 US 4/09

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Maxim Integrated Products, Inc.120 San Gabriel DriveSunnyvale, CA 94086

www.maxim-ic.com

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in 28 categories. We average more than one product introduction per day! For over 25 years, wehave delivered innovative engineering solutions that add value to our customers products.

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