ADS131M02QPWRQ1

Analog To Digital Converters (ADC) Overview

The ADS131M02QPWRQ1 is an automotive-grade, two-channel, simultaneous-sampling, 24-bit delta-sigma analog-to-digital converter. It operates with analog and digital supplies ranging from 2.7 V to 3.6 V, consuming 2.3 mW at 3 V. The device supports data rates up to 64 kSPS and features a programmable gain amplifier with gains from 1 to 128. It achieves a dynamic range of 102 dB at gain 1 and 80 dB at gain 64, both measured at 4 kSPS. Total harmonic distortion is specified at -100 dB. The component includes channel-to-channel phase delay calibration with a resolution of 244 ns at an 8.192 MHz clock input.

Analog To Digital Converters (ADC) Feature Summary

• AEC-Q100 qualified for automotive applications with functional safety capability
• Integrated negative charge pump enables input signals below ground
• Programmable channel-to-channel phase delay calibration for sensor compensation
• Cyclic redundancy check (CRC) on communications and register map

Analog To Digital Converters (ADC) Applications

• Automotive battery management systems (BMS)
• EV charging stations DC e-metering
• Energy storage systems (ESS)

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'Q1' confirms AEC-Q100 qualification and extended temperature range compliance. Confirm package type matches the 20-pin TSSOP requirement. Ensure supply voltage levels align with the 2.7 V to 3.6 V operating specifications before integration.

Analog To Digital Converters (ADC) Selection Notes

Select this component when simultaneous sampling of two differential channels is required in automotive environments. The integrated PGA and low noise performance suit direct shunt resistor or thermistor connections. Verify that the 64 kSPS maximum data rate meets system bandwidth requirements.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS131M02-Q1 family of automotive delta-sigma ADCs. It provides high-resolution conversion optimized for cost-sensitive battery management applications. The device integrates necessary front-end components like references and charge pumps to reduce external bill of materials.

Analog To Digital Converters (ADC) Replacement Considerations

ADS131M02IPWR

Analog To Digital Converters (ADC) FAQ

What is the minimum input voltage relative to AGND?

The integrated negative charge pump allows absolute input voltages as low as 1.3 V below AGND.

How is channel synchronization handled?

The SYNC/RESET pin synchronizes conversions between multiple devices and maintains synchronization with external events.

What is the startup time specification?

The first data output is available within 0.5 ms of the supply ramp reaching 90%.