LMP2231_15 Datasheet, PDF (1/31 Pages) Texas Instruments – Single Micropower, 1.6V, Precision Operational Amplifier with CMOS Inputs

LMP2231
www.ti.com
SNOSB01E – JANUARY 2008 – REVISED MARCH 2013
LMP2231 Single Micropower, 1.6V, Precision Operational Amplifier with CMOS Inputs
Check for Samples: LMP2231
FEATURES
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23(For V_S = 5V, T_A = 25°C, Typical Unless
Otherwise Noted)
• Supply Current 10 µA
• Operating Voltage Range 1.6V to 5.5V
• TCV_OS (LMP2231A) ±0.4 µV/°C (max)
• TCV_OS (LMP2231B) ±2.5µV/°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 LMP2231 is a single micropower precision
amplifier designed for battery powered applications.
The 1.6V to 5.5V operating supply voltage range and
quiescent power consumption of only 16 μW extend
the battery life in portable battery operated systems.
The LMP2231 is part of the LMP™ precision amplifier
family. The high impedance CMOS input makes it
ideal for instrumentation and other sensor interface
applications.
The LMP2231 has a maximum offset of 150 µV and
maximum offset voltage drift of only 0.4 µV/°C along
with low bias current of only ±20 fA. These precise
specifications make the LMP2231 a great choice for
maintaining system accuracy and long term stability.
The LMP2231 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 LMP2231 is ideal for use in single supply
applications with ground sensing.
The LMP2231 is offered in 5-Pin SOT-23 and 8-pin
SOIC packages.
The dual and quad versions of this product are also
available. The dual, LMP2232 is offered in 8-pin
SOIC and VSSOP. The quad, LMP2234 is offered in
14-pin SOIC and TSSOP.
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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 © 2008–2013, Texas Instruments Incorporated