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

in fixed or adjustable gains and the option for either a

shutdown mode or a pin to set the output voltage relative

to an external reference (see 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 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

o Tiny 6-Pin SOT23 Package

o Input Negative Rail Sensing

o 1pA (typ) Input Bias Current

o 100µV Input Offset Voltage

o Rail-to-Rail Output

o 2.85V to 5.25V Single Supply

o 700µA Supply Current

o ±0.1% Gain Error

o 2.5MHz Gain-Bandwidth Product

o 18nV/√Hz Input-Referred Noise

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

Instrumentation Amplifiers

________________________________________________________________ Maxim Integrated Products

1

19-2279; Rev 2; 11/02

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

Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.

PART

TEMP

RANGE

PIN-

PACKAGE

TOP

MARK

MAX4460EUT-T

-40°C to +85°C

6 SOT23-6

AASS

MAX4460ESA

-40°C to +85°C

8 SO

—

MAX4461UEUT-T

-40°C to +85°C

6 SOT23-6

AAST

MAX4461UESA

-40°C to +85°C

8 SO

—

MAX4461TEUT-T

-40°C to +85°C

6 SOT23-6

AASU

MAX4461TESA

-40°C to +85°C

8 SO

—

MAX4461HEUT-T

-40°C to +85°C

6 SOT23-6

AASV

MAX4461HESA

-40°C to +85°C

8 SO

—

MAX4462UEUT-T

-40°C to +85°C

6 SOT23-6

AASW

MAX4462UESA

-40°C to +85°C

8 SO

—

MAX4462TEUT-T

-40°C to +85°C

6 SOT23-6

AASX

MAX4462TESA

-40°C to +85°C

8 SO

—

MAX4462HEUT-T

-40°C to +85°C

6 SOT23-6

AASY

MAX4462HESA

-40°C to +85°C

8 SO

—

Pin Configurations appear at end of data sheet.

∆V

∆V

6

1

5

2

MAX4462

3

4

OUT

REF

Typical Application Circuits

Selector Guide appears at end of data sheet.

Typical Application Circuits continued at end of data sheet.