MAX4461UEUT-T Datasheet MAX4460ETT+T, MAX4462TEUT+T, MAX4461TETT+T | P1-P3

General Description

The MAX4460/MAX4461/MAX4462 are instrumentation

amplifiers with precision specifications, low-power con-

sumption, and excellent gain-bandwidth product.

Proprietary design techniques allow ground-sensing

capability combined with ultra-low input current and

increased common-mode rejection performance. These

rail-to-rail output instrumentation amplifiers are offered in

fixed or adjustable gains and the option for either a shut-

down mode or a pin to set the output voltage relative to

an external reference (see the Ordering Information and

Selector Guide).

The MAX4460 has an adjustable gain and uses ground

as its reference voltage. The MAX4461 is offered in fixed

gains of 1, 10, and 100, uses ground as its reference volt-

age, and has a logic-controlled shutdown input. The

MAX4462 is offered in fixed gains of 1, 10, and 100 and

has a reference input pin (REF). REF sets the output volt-

age for zero differential input to allow bipolar signals in

single-supply applications.

The MAX4460/MAX4461/MAX4462 have high-impedance

inputs optimized for small-signal differential voltages. The

MAX4461/MAX4462 are factory trimmed to gains of 1, 10,

or 100 (suffixed U, T, and H) with ±0.1% accuracy. The

typical offset of the MAX4460/MAX4461/MAX4462 is

100µV. All devices have a gain-bandwidth product of

2.5MHz.

These amplifiers operate with a single-supply voltage

from 2.85V to 5.25V and with a quiescent current of only

700µA (less than 1µA in shutdown for the MAX4461). The

MAX4462 can also be operated with dual supplies.

Smaller than most competitors, the MAX4460/

MAX4461/MAX4462 are available in space-saving 6-pin

SOT23 and TDFN packages.

________________________Applications

Industrial Process Control

Strain-Gauge Amplifiers

Transducer Interface

Precision Low-Side Current Sense

Low-Noise Microphone Preamplifier

Differential Voltage Amplification

Battery-Powered Medical Equipment

Features

♦ Tiny 6-Pin SOT23 and TDFN Packages

♦ Input Negative Rail Sensing

♦ 1pA (typ) Input Bias Current

♦ 100µV Input Offset Voltage

♦ Rail-to-Rail Output

♦ 2.85V to 5.25V Single Supply

♦ 700µA Supply Current

♦ ±0.1% Gain Error

♦ 2.5MHz Gain-Bandwidth Product

♦ 18nV/√Hz Input-Referred Noise

MAX4460/MAX4461/MAX4462

SOT23, 3V/5V, Single-Supply, Rail-to-Rail

Instrumentation Amplifiers

________________________________________________________________ Maxim Integrated Products 1

19-2279; Rev 4; 3/06

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Ordering Information

PART

TEMP

RANGE

PIN-

PACKAGE

TOP

MARK

MAX4460ETT+T

-40°C to +85°C 6 TDFN-EP*

+ANI

MAX4460EUT-T

-40°C to +85°C 6 SOT23-6

AASS

MAX4460ESA

-40°C to +85°C

8 SO —

MAX4461UETT+T

-40°C to +85°C 6 TDFN-EP*

+ANJ

MAX4461UEUT-T

-40°C to +85°C 6 SOT23-6

AAST

MAX4461UESA

-40°C to +85°C

8 SO —

MAX4461TETT+T

-40°C to +85°C 6 TDFN-EP*

+ANK

MAX4461TEUT-T

-40°C to +85°C 6 SOT23-6

AASU

MAX4461TESA

-40°C to +85°C

8 SO —

MAX4461HETT+T

-40°C to +85°C 6 TDFN-EP*

+ANL

MAX4461HEUT-T

-40°C to +85°C 6 SOT23-6

AASV

MAX4461HESA

-40°C to +85°C

8 SO —

Pin Configurations appear at end of data sheet.

+ ∆V

- ∆V

MAX4462

OUT

REF

Typical Application Circuits

Selector Guide appears at end of data sheet.

Typical Application Circuits continued at end of data sheet.

+Denotes lead-free package.

*EP = Exposed paddle.

Ordering Information continued at end of data sheet.

MAX4460/MAX4461/MAX4462

SOT23, 3V/5V, Single-Supply, Rail-to-Rail

Instrumentation Amplifiers

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

Supply Voltage (V

to V

) ...................................-0.3V to +6V

All Other Pins ...................................(V

- 0.3V) to (V

+ 0.3V)

Output Short-Circuit Duration to Either Supply.........................1s

Continuous Power Dissipation (T

= +70°C)

6-Pin SOT23 (derate 8.7mW/°C above +70°C)............695mW

6-Pin TDFN-EP (derate 18.2mW/°C above +70°C)....1454mW

8-Pin SO (derate 5.9mW/°C above +70°C)..................470mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s)....................................300°C

ELECTRICAL CHARACTERISTICS—MAX4460/MAX4461

= 5V, V

= 0V, V

DIFF

= V

IN+

- V

IN-

= 50mV to 100mV for G = 1, 20mV to 100mV for G = 10, 2mV to 48mV for G =100,

MAX4460 is configured for G = 10, R

= 200kΩ to GND, T

= +25°C, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Supply Voltage V

Guaranteed by PSRR test

2.85 5.25

= 5V, V

DIFF

= 0V

0.80

1.1

Supply Current

= 3V, V

DIFF

= 0V

0.68

0.9

Shutdown Supply Current

MAX4461, SHDN = GND

= 5V 0.1 1 µA

MAX4460ESA

±50 ±425

MAX4461ESA

±50 ±300

Input Offset Voltage (Note 1)

MAX446_EUT/MAX446_ETT

±100 ±600

µV

Differential mode

Input Resistance R

= V

Common mode 2

GΩ

Input Common-Mode Range V

Guaranteed by CMRR test

-0.1

1.7

Input Common-Mode

Rejection Ratio

CMRR V

= -0.1V to (V

- 1.7V) 90

120

Power-Supply Rejection Ratio PSRR V

= 2.85V to 5.25V 80

100

Input Bias Current I

(Note 2) 1

100

FB Input Current MAX4460 (Note 2) 1

100

MAX4461

0.7 X

SHDN Logic Levels

MAX4461

0.3 X

SHDN Input Current MAX4461, V

SHDN

= 0V or V

(Note 2) 1

100

f = 10kHz 18

Input Voltage Noise e

f = 1kHz 38

nV/√Hz

= 200kΩ 1 2.5

- V

(Note 3)

= 20kΩ 35

= 200kΩ 0 0.2

Output Voltage Swing

= 20kΩ 0 0.2

Short-Circuit Current I

(Note 4)

±150

MAX4460/MAX4461/MAX4462

SOT23, 3V/5V, Single-Supply, Rail-to-Rail

Instrumentation Amplifiers

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS—MAX4460/MAX4461 (continued)

= 5V, V

= 0V, V

DIFF

= V

IN+

- V

IN-

= 50mV to 100mV for G = 1, 20mV to 100mV for G = 10, 2mV to 48mV for G =100,

MAX4460 is configured for G = 10, R

= 200kΩ to GND, T

= +25°C, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

UNITS

G = 1V/V, MAX4461UESA 0.1 0.3

G = 10V/V, MAX4461TESA

0.12 0.35

G = 100V/V, MAX4461HESA 0.15

0.6

G = 10V/V, MAX4460ESA

0.15 0.35

Gain Error R

= 20kΩ

MAX446_EUT/MAX446_ETT 0.15

0.6

Nonlinearity (Note 1) R

= 20kΩ

0.05 0.15

Maximum Capacitive Load C

No sustained oscillations

100

G = 1V/V, MAX4461U

2500

G = 10V/V, MAX4461T

250

-3dB Bandwidth

-3dB

= 100pF

G = 100V/V, MAX4461H 25

kHz

Gain-Bandwidth Product GBWP C

= 100pF 2.5 MHz

G = 1V/V 0.5

G = 10V/V 0.5

Slew Rate SR

= 100pF

G = 100V/V

0.25

V/µs

G = 1V/V 15

G = 10V/V 75Settling Time t

= 100pF,

within 0.1% of

final value

G = 100V/V

250

µs

ELECTRICAL CHARACTERISTICS—MAX4460/MAX4461

= 5V, V

= 0V, V

DIFF

= V

IN+

- V

IN-

= 50mV to 100mV for G = 1, 20mV to 100mV for G = 10, 2mV to 48mV for G = 100,

MAX4460 is configured for G = 10, R

= 200kΩ to GND, T

= T

MIN

to T

MAX

, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

UNITS

Supply Voltage V

Guaranteed by PSRR test

2.85 5.25

= 5V, V

DIFF

= 0V 1.4

Supply Current

= 3V, V

DIFF

= 0V

1.15

Shutdown Supply Current

MAX4461,

SHDN = GND

= 5V 1 µA

= 0°C to +85°C

±750

MAX4460ESA

= -40°C to +85°C

±950

G = 1

±750

G = 10 ±500

= 0°C to

+85°C

G = 100 ±500

G = 1

±950

G = 10 ±750

MAX4461ESA

= -40°C to

+85°C

G = 100 ±750

= 0°C to +85°C

±1400

Input Offset Voltage (Note 1) V

MAX446_EUT/

MAX446_ETT

= -40°C to +85°C

±1900

µV

Input Offset-Voltage Drift TC

VOS

(Note 1) 1.5

µV/°C

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P20

MAX4461UEUT-T

Mfr. #:

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Manufacturer:

Maxim Integrated

Description:

Instrumentation Amplifiers 3V/5V Single-Supply Rail-Rail

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MAX4461UEUT-T

MAX4461UEUT-T

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