ADS131A02IPBSR

Analog Front End (AFE) Overview

The ADS131A02IPBSR is a dual-channel, synchronous sampling, 24-bit Sigma-Delta analog-to-digital converter (ADC) from Texas Instruments. It features wide dynamic range and low power consumption, with data rates up to 128 kSPS. The device includes an internal negative charge pump for high dynamic range applications, achieving an ENOB of 19.1 bits at 8 kSPS. It supports flexible analog power operation via single or bipolar supplies and integrates a low-drift internal reference voltage. The component utilizes SPI interface modes including asynchronous interrupt and synchronous master/slave configurations.

Analog Front End (AFE) Feature Summary

• Dual-channel synchronous sampling with differential inputs
• High data transmission rate up to 128 kSPS
• Integrated negative charge pump for extended dynamic range
• Built-in self-check capabilities with CRC and Hamming error correction

Analog Front End (AFE) Applications

• Energy monitoring systems
• Power protection circuits
• Industrial control applications

Analog Front End (AFE) Procurement Notes

Verify the package type is 32-pin TQFP and the operating temperature range covers -40°C to 125°C. Confirm the suffix IPBSR indicates tape and reel packaging. Ensure compatibility with required SPI interface modes and supply voltage specifications before integration.

Analog Front End (AFE) Selection Notes

Select this model for applications requiring precise energy measurement and fault detection. The integrated charge pump allows operation with single-supply voltages while maintaining high accuracy. Consider the 19.1-bit ENOB at 8 kSPS when designing filter requirements for specific bandwidth needs.

Analog Front End (AFE) Part Context

This part belongs to the ADS131A series of analog front ends designed for metering and protection. It complements other multi-channel variants like the ADS131A04 by providing a dual-channel solution in a compact form factor suitable for space-constrained industrial designs.

Analog Front End (AFE) Replacement Considerations

Direct substitutes within the same family include the ADS131A04 for four-channel requirements. Verify pin compatibility and software register settings when migrating between different channel counts in the ADS131A series.