Features (For VS = 5V, Typical unless otherwise noted) Supply current at 1.8V 16 µA Operating voltage range 1.6V to 5.5V Low TCVOS ±0.5 µV/°C (max) VOS ±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 Description The LMP2232 is a dual micropower precision amplifier designed for battery powered applications. The 1.6V to 5.5V operating supply voltage range and quiescent power consumption of only 26 μW extend the battery life in portable systems. The LMP2232 is part of the LMP precision amplifier family. The high impedance CMOS input makes it ideal for instrumentation and other sensor interface applications. The LMP2232 has a maximum offset voltage of 150 μV and maximum offset voltage drift of only 0.5 μV/°C along with low bias current of only ±20 fA. These precise specifications make the LMP2232 a great choice for maintaining system accuracy and long term stability. The LMP2232 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 LMP2232 is ideal for ground sensing in single supply applications. The LMP2232 is offered in 8-pin SOIC and MSOP packages. The LMP2231 is the single version of this product and the LMP2234 is the quad version of this product. Both of these products are available on National Semiconductor's website. Applications • Precision instrumentation amplifiers • Battery powered medical instrumentation • High impedance sensors • Strain gauge bridge amplifier • Thermocouple amplifiers

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Datasheet

Title		Size	Date	Other Language
	LMP2232 Dual Micropower, 1.6V, Precision, Operational Amplifier with CMOS Input	808 Kbytes	18-Dec-08	日本語

Featured Application Notes

Title		Size	Date	Other Language
	AN-1932: Application Note 1932 LMP2021MAEVAL - Bridge Sensor Instrumentation Amplifier Evaluation Board User Guide	176 Kbytes	10-Dec-08

More Application Notes

Title		Size	Date	Other Language
	AN-1873: Application Note 1873 DC Parameters	249 Kbytes	19-Jun-08	中文

Design Tools

Title	Size	Date
CLC730121EB 8-pin Thermally Enhanced SOIC(PSOP)	119 Kbytes	22-Jun-01
CLC730123EB 8-Pin MSOP Dual Op Amp Evaluation Board	103 Kbytes	22-Jun-01

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMP2232AMA	VIP50CLZ3	0	1755	0	0	315000	12	89382110
LMP2232AMAE	VIP50CLZ3	0	1755	0	0	315000	12	89382110
LMP2232AMAX	VIP50CLZ3	0	1755	0	0	315000	12	89382110
LMP2232AMM	VIP50CLZ3	0	1755	0	0	315000	12	89382110
LMP2232AMME	VIP50CLZ3	0	1755	0	0	315000	12	89382110
LMP2232AMMX	VIP50CLZ3	0	1755	0	0	315000	12	89382110
LMP2232BMA	VIP50CLZ3	0	1755	0	0	315000	12	89382110
LMP2232BMAE	VIP50CLZ3	0	1755	0	0	315000	12	89382110
LMP2232BMAX	VIP50CLZ3	0	1755	0	0	315000	12	89382110
LMP2232BMM	VIP50CLZ3	0	1755	0	0	315000	12	89382110
LMP2232BMME	VIP50CLZ3	0	1755	0	0	315000	12	89382110
LMP2232BMMX	VIP50CLZ3	0	1755	0	0	315000	12	89382110

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

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