LMP2232

www.ti.com

SNOSB02C – JANUARY 2008 – REVISED MARCH 2013

LMP2232 Dual Micropower, 1.6V, Precision, Operational Amplifier with CMOS Input

Check for Samples: LMP2232

1

FEATURES

DESCRIPTION

The

LMP2232

is

a

dual

micropower

precision

23

(For VS = 5V, Typical Unless Otherwise Noted)

amplifier designed for battery powered applications.

•

Supply Current at 1.8V 16 µA

The 1.6V to 5.5V operating supply voltage range and

•

Operating Voltage Range 1.6V to 5.5V

quiescent power consumption of only 26

μW extend

the battery life in portable systems. The LMP2232 is

•

Low TCVOS ±0.5 µV/°C (max)

part of the LMP™ precision amplifier family. The high

•

VOS ±150 µV (max)

impedance

CMOS

input

makes

it

ideal

for

•

Input Bias Current 20 fA

instrumentation

and

other

sensor

interface

applications.

•

PSRR 120 dB

•

CMRR 97 dB

The LMP2232 has a maximum offset voltage of 150

μV and maximum offset voltage drift of only 0.5 μV/°C

•

Open Loop Gain 120 dB

along with low bias current of only ±20 fA. These

•

Gain Bandwidth Product 130 kHz

precise specifications make the LMP2232 a great

•

Slew Rate 58 V/ms

choice for maintaining system accuracy and long term

stability.

•

Input Voltage Noise, f = 1 kHz 60 nV/

√Hz

•

Temperature Range –40°C to 125°C

The LMP2232 has a rail-to-rail output that swings 15

mV from the supply voltage, which increases system

dynamic range. The common mode input voltage

APPLICATIONS

range extends 200 mV below the negative supply,

•

Precision Instrumentation Amplifiers

thus the LMP2232 is ideal for ground sensing in

•

Battery Powered Medical Instrumentation

single supply applications.

•

High Impedance Sensors

The LMP2232 is offered in 8-pin SOIC and VSSOP

•

Strain Gauge Bridge Amplifier

packages.

•

Thermocouple Amplifiers

The LMP2231 is the single version of this product

and the LMP2234 is the quad version of this product.

Both of these products are available on Texas

Instruments' website.

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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

LMP is a trademark of Texas Instruments.

3

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2008–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.