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LMP2231

更新时间： 2024-11-05 02:58:19
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德州仪器 - TI /
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Single Micropower, 1.6V, Precision Operational Amplifier with CMOS Inputs

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LMP2231 数据手册

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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  
1
FEATURES  
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.  
23  
(For VS = 5V, TA = 25°C, Typical Unless  
Otherwise Noted)  
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Supply Current 10 µA  
Operating Voltage Range 1.6V to 5.5V  
TCVOS (LMP2231A) ±0.4 µV/°C (max)  
TCVOS (LMP2231B) ±2.5µV/°C (max)  
VOS ±150 µV (max)  
Input Bias Current 20 fA  
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.  
PSRR 120 dB  
CMRR 97 dB  
Open Loop Gain 120 dB  
Gain Bandwidth Product 130 kHz  
Slew Rate 58 V/ms  
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.  
Input Voltage Noise, f = 1 kHz 60 nV/√Hz  
Temperature Range –40°C to 125°C  
APPLICATIONS  
The LMP2231 is offered in 5-Pin SOT-23 and 8-pin  
SOIC packages.  
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Precision Instrumentation Amplifiers  
Battery Powered Medical Instrumentation  
High Impedance Sensors  
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.  
Strain Gauge Bridge Amplifier  
Thermocouple Amplifiers  
1
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 © 2008–2013, Texas Instruments Incorporated  
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