LMP90100MH/NOPB

The LMP90100MH/NOPB is a highly integrated, 24-bit Sensor Analog Front End. The device features a precision, 24-bit sigma-delta analog-to-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 calibration at all gains and output data rates without interrupting the signal path. The background calibration feature essentially eliminates gain and offset errors across temperature and time, providing measurement accuracy without sacrificing speed and power consumption.

• True continuous background calibration at all gains
• In-place system calibration using expected value programming
• Low-noise programmable gain
• 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 to 1000µA
• 4-DIFF/7-SE Inputs
• 7 General purpose input/output pins
• Chopper-stabilized buffer for low offset
• SPI 4/3-wire with CRC data link error detection
• 50 to 60Hz Line rejection at ODR ≤13.42 SPS
• Independent gain and ODR selection per channel
• Automatic channel sequencer