LMP90077MH/NOPB

Analog Front End (AFE) Overview

The LMP90077MH/NOPB is a multi-channel, low-power 16-bit sensor analog front-end (AFE) manufactured by Texas Instruments. It integrates a sigma-delta ADC with true continuous background calibration to maintain accuracy without external references. The device supports multiple input types including differential and single-ended signals, accommodating various sensor interfaces such as RTDs, thermocouples, and strain gauges. Packaged in a 28-pin HTSSOP exposed pad, it operates within a temperature range of -40°C to +125°C.

Analog Front End (AFE) Feature Summary

• Integrated 16-bit sigma-delta ADC with programmable gain amplifier (PGA)
• True continuous background calibration for drift compensation
• Supports multiple sensor inputs: RTD, thermocouple, strain gauge, voltage
• SPI digital interface for configuration and data readout

Analog Front End (AFE) Applications

• Industrial process control sensors
• Medical instrumentation signal conditioning
• Portable test and measurement equipment
• Smart transmitters and field instruments

Analog Front End (AFE) Procurement Notes

Verify the specific suffix 'MH' corresponds to the 28-pin HTSSOP package and tape-and-reel or tube availability from authorized distributors. Confirm RoHS compliance status via the manufacturer's current datasheet revision. Check for obsolescence notices or lifecycle status updates before finalizing procurement plans.

Analog Front End (AFE) Selection Notes

Select this component when high-accuracy multi-sensor integration is required in space-constrained designs. Ensure the input signal range matches the internal PGA settings. Verify that the SPI interface timing requirements align with the host microcontroller capabilities. Consider thermal dissipation if operating near maximum junction temperatures.

Analog Front End (AFE) Part Context

This part belongs to the LMP9007x family of sensor AFEs, designed to simplify signal conditioning for precision measurements. It replaces discrete amplifier and ADC solutions, reducing board space and component count. The NOPB suffix indicates lead-free and halogen-free construction compliant with environmental standards.

Analog Front End (AFE) Replacement Considerations

Direct pin-to-pin replacements may include the LMP90077MHE variant, which shares similar functionality but may differ in packaging or reel specifications. Cross-reference with the LMP90080 for higher channel counts or different calibration features. Always verify electrical parameters against the latest datasheets before substitution.