LMP2234 Datasheet, PDF (1/31 Pages) National Semiconductor (TI) – Micropower, Precision, RRO Amplifier with CMOS Input

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
FEATURES
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23(For V_S = 5V, Typical Unless Otherwise Noted)
• Supply Current at 1.8V 31 µA
• Operating Voltage Range 1.6V to 5.5V
• Low TCV_OS ±0.75 µV/°C (max)
• V_OS ±150 µV (max)
• Input Bias Current ±20 fA
• PSRR 120 dB
• CMRR 97 dB
• 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
APPLICATIONS
• Precision Instrumentation Amplifiers
• Battery Powered Medical Instrumentation
• High Impedance Sensors
• Strain Gauge Bridge Amplifier
• Thermocouple Amplifiers
DESCRIPTION
The LMP2234 is a quad micropower precision
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
instrumentation and other sensor interface
applications.
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.
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.
The LMP2234 is offered in 14-Pin SOIC and TSSOP
packages.
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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.
LMP is a trademark of Texas Instruments.
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All other trademarks are the property of their respective owners.
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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