LMP90079 - National Semiconductor

LMP90079 (LMP90077 - LMP90080) Sensor AFE System

The LMP90080/LMP90079/LMP90078/LMP90077 are highly integrated, multi-channel, low-power 16-bit Sensor AFEs. The devices feature a precision, 16-bit Sigma Delta Analogto-Digital Converter (ADC) with a low-noise programmable gain amplifier and a fully differential high impedance analog input multiplexer. A true continuous background calibration feature allows .

Features

make the LMP90080/LMP90079/ LMP90078/LMP90077 complete analog front-ends for lowpower, precision sensor applications such as temperature, pressure, strain gauge, and industrial process control. The LMP90080/LMP90079/LMP90078/LMP90077 are guaranteed over the extended temperature range of -40°C to +125° C and are available in a 28-pin TSSOP package.
■ Low-Noise programmable gain (1x - 128x)
■ Continuous background open/short and out of range sensor diagnostics
■ 8 output data rates (ODR) with single-cycle settling
■ 2 matched excitation current sources from 100 µA to
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■ 1000 µA .