ADUM7701-8BRIZ-RL

ADCs/DACs - Special Purpose Overview

The ADUM7701-8BRIZ-RL is a 16-bit, isolated Sigma-Delta modulator from Analog Devices. It features an on-chip digital isolator based on iCoupler technology, providing galvanic isolation between the analog input and digital output. The device accepts a pseudo-differential analog input signal with a full-scale range of ±320 mV (specified performance at ±250 mV). It operates from a 4.5 V to 5.5 V supply for the analog side (VDD1) and a 3 V to 5.5 V supply for the digital side (VDD2). Key electrical parameters include a typical Signal-to-Noise Ratio (SNR) of 86 dB, an Effective Number of Bits (ENOB) of 14 bits, and a maximum main clock frequency of 21 MHz. The component is housed in an 8-lead SOIC_IC package.

ADCs/DACs - Special Purpose Feature Summary

• Integrated digital isolation with high common-mode transient immunity of 150 kV/µs minimum
• 16-bit resolution with no missing codes and typical SNR of 86 dB
• Pseudo-differential analog input suitable for shunt voltage monitoring
• Operating temperature range from −40°C to +125°C

ADCs/DACs - Special Purpose Applications

• Shunt current monitoring
• AC motor controls
• Power and solar inverters
• Wind turbine inverters

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and reel configuration. Ensure compatibility with system voltage requirements, specifically the 4.5 V to 5.5 V range for the isolated analog supply and the 3 V to 5.5 V range for the digital interface. Confirm insulation ratings meet application safety standards.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring high-speed data conversion with integrated galvanic isolation. The pseudo-differential input architecture is optimized for low-voltage signals across shunt resistors. Consider the 8-lead SOIC_IC package for increased creepage distance compared to standard packages. Ensure the host digital filter supports the required decimation rate to achieve specified linearity and noise performance.

ADCs/DACs - Special Purpose Part Context

The ADuM7701 belongs to the ADuM7701 series of isolated Sigma-Delta modulators. It serves as a replacement for traditional optoisolator and ADC combinations by integrating both functions into a single chip. The device utilizes CMOS technology combined with monolithic transformer technology to provide isolation, offering superior performance characteristics compared to optical alternatives.

ADCs/DACs - Special Purpose Replacement Considerations

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