LMP90077MHX/NOPB

Analog Front End (AFE) Overview

The LMP90077MHX/NOPB is a 16-bit, four-channel delta-sigma analog-to-digital converter (ADC) manufactured by Texas Instruments. It features an integrated programmable gain amplifier (PGA) and excitation current sources, designed for high-precision sensor interfacing. The device operates with an analog supply voltage ranging from 2.85 V to 5.5 V and a digital supply voltage from 2.7 V to 5.5 V. It utilizes an SPI-compatible serial interface for data communication. The component is housed in a 28-pin HTSSOP package and supports sampling rates up to 214.6 samples per second, ensuring accurate signal acquisition for industrial applications.

Analog Front End (AFE) Feature Summary

• 16-bit resolution with four differential or single-ended input channels
• Integrated programmable gain amplifier (PGA) with gains from 1 to 128
• On-chip excitation current sources for bridge sensor biasing
• SPI-compatible digital interface with configurable data rates

Analog Front End (AFE) Applications

• Industrial process control sensor interfaces
• Weigh scale and load cell measurements
• Pressure and temperature transmitter systems
• Medical instrumentation requiring high precision

Analog Front End (AFE) Part Context

The LMP90077MHX/NOPB belongs to the LMP9007x family of precision ADCs from Texas Instruments. This series is engineered specifically for bridging sensors that require both signal conditioning and digitization. The 'MHX' suffix indicates the HTSSOP-28 package type with tape-and-reel packaging, while '/NOPB' denotes a lead-free, halogen-free RoHS-compliant variant without specific commercial branding modifications.