LMP2234
www.ti.com
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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(For VS = 5V, Typical Unless Otherwise Noted)
amplifier designed for battery powered applications.
The 1.6 to 5.5V operating supply voltage range and
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
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Supply Current at 1.8V 31 µA
Operating Voltage Range 1.6V to 5.5V
Low TCVOS ±0.75 µV/°C (max)
VOS ±150 µV (max)
Input Bias Current ±20 fA
PSRR 120 dB
instrumentation
applications.
and
other
sensor
interface
CMRR 97 dB
The LMP2234 has a maximum offset voltage of 150
μV and 0.3 μV/°C offset drift along with low bias
current of only ±20 fA. These precise specifications
make the LMP2234 a great choice for maintaining
system accuracy and long term stability.
Open Loop Gain 120 dB
Gain Bandwidth Product 130 kHz
Slew Rate 58 V/ms
Input Voltage Noise, f = 1 kHz 60 nV/√Hz
Temperature Range –40°C to 125°C
The LMP2234 has a rail-to-rail output that swings 15
mV from the supply voltage, which increases system
dynamic range. The common mode input voltage
range extends 200 mV below the negative supply,
thus the LMP2234 is ideal for ground sensing in
single supply applications.
APPLICATIONS
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Precision Instrumentation Amplifiers
Battery Powered Medical Instrumentation
High Impedance Sensors
The LMP2234 is offered in 14-Pin SOIC and TSSOP
packages.
Strain Gauge Bridge Amplifier
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.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007–2013, Texas Instruments Incorporated