AMC131M03QDFMRQ1

ADCs/DACs - Special Purpose Overview

The AMC131M03QDFMRQ1 is an automotive-grade, three-channel, simultaneous-sampling, 24-bit delta-sigma (ΔΣ) analog-to-digital converter (ADC). It features a fully integrated isolated DC/DC converter for single-supply operation from the low-voltage side. The device provides reinforced capacitive isolation certified to VDE 0884-17 and UL 1577 standards. Key electrical parameters include a programmable data rate up to 64 kSPS, programmable gain up to 128, and a 4-wire SPI interface with cyclic redundancy check (CRC). It operates on a 3.3 V or 5 V supply and supports an ambient temperature range of –40°C to +125°C.

ADCs/DACs - Special Purpose Feature Summary

• AEC-Q100 qualified for automotive applications with Temperature Grade 1 (-40°C to +125°C)
• Three isolated, simultaneous-sampling ΔΣ ADCs with differential inputs
• Reinforced isolation: 7070-VPEAK per DIN EN IEC 60747-17 and 5000-VRMS per UL 1577
• Integrated isolated DC/DC converter enabling single-supply operation

ADCs/DACs - Special Purpose Applications

• Automotive battery management systems (BMS)
• HEV/EV onboard chargers (OBC)
• HEV/EV DC/DC converters
• EV charging stations

ADCs/DACs - Special Purpose Procurement Notes

Verify that the ordering suffix 'Q1' confirms AEC-Q100 automotive qualification and the 'DFMR' suffix specifies the 20-pin wide-body SOIC package. Ensure compliance with safety-related certifications such as VDE 0884-17 and UL 1577 for the intended application's isolation requirements. Confirm power supply voltage compatibility with the specified 3.3 V or 5 V operating range.

ADCs/DACs - Special Purpose Selection Notes

Select this component when high-precision, simultaneous sampling of multiple channels is required in electric vehicle environments. The integrated DC/DC converter simplifies design by allowing single-supply operation from the low-side. Consider the 24-bit resolution and programmable gain settings for accurate voltage and current sensing across varying load conditions.

ADCs/DACs - Special Purpose Part Context

This part belongs to the AMC131M03-Q1 family of isolated delta-sigma ADCs. It is specifically designed for automotive applications requiring reinforced isolation and high accuracy. The device integrates all necessary components for isolated measurement, including the modulator, digital filter, and DC/DC converter, reducing external component count.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.