LMP2232 Datasheet | National Semiconductor

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 f A. 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 m V from the supply voltage, which increases system dynamic range. The mon mode input voltage range extends 200 m V 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. Features (For VS = 5V, Typical unless otherwise noted) 16 µA - Supply current at 1.8V 1.6V to 5.5V - Operating voltage range ±0.5 µV/°C (max) - Low TCVOS ±150 µV (max) - VOS 20 f A - Input bias current 120 d B - PSRR 97 d B - CMRR 120 d B - Open loop gain 130 k Hz - Gain bandwidth product 58 V/ms - Slew rate 60 n V/√Hz - Input voltage noise, f = 1 k Hz - 40°C to 125°C - Temperature range Applications - - - - - Precision instrumentation amplifiers Battery powered medical instrumentation High impedance sensors Strain gauge bridge amplifier Thermocouple amplifiers Typical Application Strain Gauge Bridge Amplifier LMP® is a registered trademark of National Semiconductor Corporation. © 2008 National Semiconductor Corporation .national. Absolute Maximum Ratings (Note 1) If Military/Aerosp...