ADS131B26QPHPRQ1

Analog To Digital Converters (ADC) Overview

The ADS131B26QPHPRQ1 is an automotive-grade, high-voltage battery pack monitor featuring six analog-to-digital converter channels. It integrates two simultaneous-sampling, 24-bit ADCs for current-shunt measurements with programmable full-scale ranges from ±39mV to ±312.5mV and data rates up to 64kSPS. Two additional 24-bit ADCs measure battery voltage synchronously using external resistor dividers. The device includes two multiplexed, 16-bit ADCs for temperature and voltage sensing across eight analog inputs per channel. Operating on a supply voltage of 2.9V to 16V, it supports SPI communication and provides diagnostic features for functional safety compliance.

Analog To Digital Converters (ADC) Feature Summary

• Dual redundant 24-bit ADCs enable high-accuracy current-shunt measurements with integrated digital overcurrent comparators for fast fault detection.
• Integrated monitoring and diagnostic capabilities mitigate random hardware faults, supporting ISO 26262 functional safety system design up to ASIL D.
• Internal linear regulators accommodate unregulated DC/DC converters with input ranges up to 16V, simplifying power supply requirements.

Analog To Digital Converters (ADC) Applications

• Automotive battery management systems (BMS) requiring current-shunt measurements
• Voltage measurements using external resistor dividers in high-voltage battery packs
• Temperature measurements utilizing thermistors or analog output temperature sensors

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm package type and temperature grade. Ensure compatibility with AEC-Q100 qualification standards for automotive applications. Confirm that the selected variant meets the required functional safety documentation levels for your specific system design implementation.

Analog To Digital Converters (ADC) Selection Notes

Select this component when designing high-voltage battery management systems requiring simultaneous sampling of current and voltage. The integrated overcurrent comparators provide fast protection independent of the main ADC processing. Consider the 48-pin HTQFP package constraints and thermal dissipation requirements for your PCB layout during the selection process.

Analog To Digital Converters (ADC) Part Context

This device belongs to the ADS131B-Q1 family of automotive analog-to-digital converters designed specifically for electric vehicle battery management systems. It complements other Texas Instruments BMS components by providing precise, synchronized measurement of critical battery parameters including cell voltage, pack current, and temperature.

Analog To Digital Converters (ADC) Replacement Considerations

ADS131B26-Q1