LMP2234

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SNOSAW4D – SEPTEMBER 2007 – REVISED MARCH 2013

LMP2234 Quad Micropower, 1.6V, Precision, Operational Amplifier with CMOS Input

Check for Samples: LMP2234

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FEATURES

DESCRIPTION

The LMP2234 is a quad micropower precision

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amplifier designed for battery powered applications.

•

Supply Current at 1.8V 31 µA

The 1.6 to 5.5V operating supply voltage range and

•

Operating Voltage Range 1.6V to 5.5V

quiescent power consumption of only 50

μW extend

the battery life in portable systems. The LMP2234 is

•

part of the LMP™ precision amplifier family. The high

•

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 LMP2234 has a maximum offset voltage of 150

μV and 0.3 μV/°C offset drift along with low bias

•

Open Loop Gain 120 dB

current of only ±20 fA. These precise specifications

•

Gain Bandwidth Product 130 kHz

make the LMP2234 a great choice for maintaining

•

Slew Rate 58 V/ms

system accuracy and long term stability.

•

Input Voltage Noise, f = 1 kHz 60 nV/

√Hz

The LMP2234 has a rail-to-rail output that swings 15

•

Temperature Range –40°C to 125°C

mV from the supply voltage, which increases system

dynamic range. The common mode input voltage

range extends 200 mV below the negative supply,

APPLICATIONS

thus the LMP2234 is ideal for ground sensing in

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Precision Instrumentation Amplifiers

single supply applications.

•

Battery Powered Medical Instrumentation

The LMP2234 is offered in 14-Pin SOIC and TSSOP

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High Impedance Sensors

packages.

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Strain Gauge Bridge Amplifier

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Thermocouple Amplifiers

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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.

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LMP is a trademark of Texas Instruments.

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All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2007–2013, 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.