ADS131A02IPBS

Analog Front End (AFE) Overview

The ADS131A02IPBS is a dual-channel, 24-bit simultaneous-sampling delta-sigma analog-to-digital converter (ADC) from Texas Instruments. Designed for power monitoring, control, and protection applications, it features a wide dynamic range and low power consumption. The device integrates programmable gain amplifiers (PGAs) with gains ranging from 1 to 128, allowing direct connection to voltage dividers, potential transformers, current transformers, or Rogowski coils. It operates on a single 2.7V to 3.6V supply and communicates via an SPI-compatible serial interface. The IPBS package variant utilizes a 32-pin TQFP form factor.

Analog Front End (AFE) Feature Summary

• 24-bit resolution with simultaneous sampling across two channels
• Integrated PGA with programmable gain settings from 1 to 128
• Built-in channel-to-channel phase calibration registers
• SPI-compatible digital interface for data output and configuration

Analog Front End (AFE) Applications

• Power metering systems
• Energy monitoring devices
• Circuit breaker protection circuits

Analog Front End (AFE) Procurement Notes

Verify the specific suffix 'IPBS' confirms the 32-pin TQFP packaging and industrial temperature rating when sourcing. Ensure the order includes the correct tape-and-reel or tube quantity as specified by the distributor's standard packing methods for this package type. Cross-reference the manufacturer part number against official TI documentation to confirm revision status.

Analog Front End (AFE) Selection Notes

Select the ADS131A02IPBS when dual-channel simultaneous sampling is required for accurate power calculations in three-phase or split-phase systems. The integrated PGA eliminates external amplifier requirements for low-level sensor signals. Consider the 32-pin TQFP footprint for PCB layout constraints compared to smaller QFN alternatives in the same family.

Analog Front End (AFE) Part Context

This component belongs to the ADS131A0x series of analog front-ends designed specifically for power monitoring and protection. It shares architectural similarities with other members like the ADS131A04 but differs in channel count. The device is part of Texas Instruments' portfolio of high-precision data converters aimed at industrial energy management solutions.

Analog Front End (AFE) Replacement Considerations

Direct pin-compatible replacements within the same package are limited. The ADS131A04 offers four channels but may require schematic adjustments. Other ADS131M variants offer different sampling rates and channel counts but are not functionally identical substitutes.