Texas Instruments LMP900xx Sensor AFEs
Texas Instruments LMP90080/LMP90079/LMP90078/LMP90077 are highly integrated, multi-channel, low-power 16-bit Sensor AFEs. The devices feature a precision, 16-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.
TI LMP90100/LMP90099/LMP90098/LMP90097 are highly integrated, multi-channel, low-power 24-bit Sensor AFEs. These devices feature 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.
Features
- 16-bit low-power sigma-delta ADC (LMP90077/LMP90078/LMP90079/LMP90080)
- 24-bit low-power sigma-delta ADC (LMP90097/LMP90098/LMP90099/LMP90100)
- True continuous background calibration at all gains
- In-place system calibration using expected value programming
- Low-noise programmable gain (1x - 128x)
- Continuous background open/short and out-of-range sensor diagnostics
- Eight Output Data Rates (ODR) with single-cycle settling
- Two matched excitation current sources from 100µA to 1000µA (LMP90078/LMP90080/LMP90098/LMP90100)
- 4-DIFF / 7-SE inputs (LMP90079/LMP90080/LMP90099/LMP90100)
- 2-DIFF / 4-SE inputs (LMP90077/LMP90078/LMP90097/LMP90098)
Applications
- Temperature and pressure transmitters
- Strain gauge interface
- Industrial process control
Functional Block Diagram
Inilathala: 2019-10-07
| Na-update: 2023-11-30