AMC1035QDRQ1

ADCs/DACs - Special Purpose Overview

The AMC1035QDRQ1 is an automotive-grade, isolated delta-sigma modulator manufactured by Texas Instruments. It features a bipolar input range of ±1 V and provides a built-in 2.5 V reference output. The device operates on a single supply voltage ranging from 3 V to 5.5 V and delivers 16-bit resolution with a maximum clock frequency of 11 MHz. Designed for high-precision applications, it offers a gain error of 0.02% and an integral nonlinearity (INL) of 2 LSB. The component is housed in an 8-SOIC package and supports operation across a temperature range of -40°C to +125°C.

ADCs/DACs - Special Purpose Feature Summary

• Automotive qualified AEC-Q100 specification
• Isolated delta-sigma modulation architecture
• Bipolar ±1 V input with integrated 2.5 V reference
• 16-bit resolution with 11 MHz max clock frequency

ADCs/DACs - Special Purpose Applications

• Current sensing in electric vehicle powertrains
• High-voltage motor control systems
• Industrial isolation amplifiers
• Precision energy metering

ADCs/DACs - Special Purpose Part Context

The AMC1035QDRQ1 belongs to the AMC1035 family of isolated modulators. The 'Q1' suffix indicates automotive qualification, while 'DR' denotes the SOIC-8 surface-mount package. This part serves as a front-end converter for isolated data acquisition systems, bridging high-voltage analog signals to low-voltage digital processors via sigma-delta modulation.

ADCs/DACs - Special Purpose Replacement Considerations

Direct pin-to-pin replacements within the same family include the AMC1035DR for non-automotive use or other variants in the AMC103x series if electrical parameters such as input range or reference voltage match the specific design requirements.