LMP90099MH/NOPB

Analog Front End (AFE) Overview

The LMP90099MH/NOPB is a 24-bit, seven-channel delta-sigma analog-to-digital converter (ADC) from Texas Instruments. It features an integrated programmable gain amplifier (PGA) and operates with a sampling rate of up to 214.6 samples per second. The device supports dual power supplies: an analog supply ranging from 2.85 V to 5.5 V and a digital supply from 2.7 V to 5.5 V. Communication is handled via an SPI interface. Packaged in a 28-lead HTSSOP, it is designed for low-power sensor applications within an operating temperature range of -40°C to +125°C.

Analog Front End (AFE) Feature Summary

• 24-bit resolution with seven independent input channels
• Integrated PGA for flexible signal conditioning
• Low power consumption of 1.2 mW
• SPI digital interface for data transfer

Analog Front End (AFE) Applications

• Multi-channel industrial process control systems
• High-resolution sensor data acquisition
• Precision measurement instrumentation

Analog Front End (AFE) Procurement Notes

Verify the specific suffix 'MH' against the manufacturer's current documentation to confirm package type and tape/reel specifications. Confirm RoHS compliance status through official datasheets or environmental files, as regulatory details may vary by production batch. Check for obsolescence notices or lifecycle changes directly from Texas Instruments before finalizing procurement plans.

Analog Front End (AFE) Selection Notes

Select this component when high channel count and precision are required simultaneously. Ensure the system design accommodates the separate analog and digital power supply requirements. Verify that the SPI interface timing matches the host controller capabilities. Consider the thermal performance within the specified -40°C to +125°C range if operating in extreme environments.

Analog Front End (AFE) Part Context

This part belongs to the LMP90099 series of multi-channel ADCs. It serves as a specialized solution for applications requiring multiple high-resolution inputs without external multiplexing. The device integrates signal conditioning functions typically handled by discrete components, simplifying the PCB layout and reducing overall system complexity.

Analog Front End (AFE) Replacement Considerations

Consult Texas Instruments documentation for direct pin-compatible alternatives within the same family. Verify electrical parameter compatibility, including sampling rate and power supply ranges, when evaluating substitute parts.