LMP90080MHX/NOPB

Analog Front End (AFE) Overview

The LMP90080MHX/NOPB is a multi-channel, low-power Analog Front End (AFE) from Texas Instruments. It integrates a 16-bit, 214 S/s Sigma-Delta ADC with seven differential or single-ended input channels. The device includes programmable gain amplifiers and excitation current sources for sensor interfacing. It operates on analog supply voltages from 2.85 V to 5.5 V and digital supplies from 2.7 V to 5.5 V. The component supports SPI interface communication and functions within an operating temperature range of -40°C to +125°C.

Analog Front End (AFE) Feature Summary

• Integrates a 16-bit Sigma-Delta ADC with multiple configurable input channels
• Includes internal programmable gain amplifiers and excitation current sources
• Supports continuous background calibration for improved accuracy
• Operates with low power consumption suitable for battery-driven applications

Analog Front End (AFE) Applications

• Industrial process control sensor interfaces
• Medical instrumentation signal conditioning
• Multi-channel data acquisition systems
• Precision measurement equipment

Analog Front End (AFE) Procurement Notes

Verify the specific suffix 'MHX' against official Texas Instruments documentation to confirm package type and tape/reel specifications. Ensure that the required operating voltage ranges align with system power rails. Confirm that the SPI interface timing requirements match the host controller capabilities. Check for any specific calibration procedures mandated by the datasheet for achieving stated accuracy levels in the final application.

Analog Front End (AFE) Selection Notes

Select this component when a high-resolution, multi-channel AFE is required for precision sensing applications. Consider the integrated PGA and current sources if external signal conditioning components are to be minimized. Evaluate the trade-off between the 214 S/s sampling rate and power consumption. Ensure the HTSSOP-28 package fits the available PCB footprint and thermal constraints.

Analog Front End (AFE) Part Context

This part belongs to the LMP90080 family of Analog Front Ends designed for low-power, high-accuracy sensor applications. It differs from other TI converters by integrating both the ADC and front-end conditioning circuitry into a single package. The device targets applications requiring multiple sensor inputs with minimal external component count.

Analog Front End (AFE) Replacement Considerations

Consult the Texas Instruments product selection guide for direct pin-to-pin or functional equivalents within the LMP900xx series. Verify compatibility regarding channel count, resolution, and interface protocols before substitution.