ADUM7701BRWZ-RL7

ADCs/DACs - Special Purpose Overview

The ADUM7701BRWZ-RL7 is a 16-bit, isolated Sigma-Delta modulator from Analog Devices. It converts analog signals into a high-speed single-bit data stream using iCoupler technology for on-chip digital isolation. The device operates with a VDD1 supply of 4.5 V to 5.5 V and accepts pseudo-differential inputs of ±250 mV (±320 mV full-scale). It features a typical SNR of 86 dB, an ENOB of 14 bits, and a maximum main clock frequency of 21 MHz. The serial interface supports VDD2 supplies from 3 V to 5.5 V.

ADCs/DACs - Special Purpose Feature Summary

• Integrated iCoupler digital isolator with 150 kV/µs minimum common-mode transient immunity
• 16-bit resolution with no missing codes and ±2 LSB integral nonlinearity
• Pseudo-differential input range of ±250 mV to ±320 mV
• 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 package variant against the datasheet, as the ADuM7701 family includes both 16-lead SOIC_W and 8-lead SOIC_IC options. Confirm that the required insulation ratings, such as VIORM or VISO, align with the safety approvals listed in the regulatory information section of the documentation.

ADCs/DACs - Special Purpose Selection Notes

Select this component when galvanic isolation is required between the analog front-end and digital processing logic. Ensure the system design accommodates the 4.5 V to 5.5 V requirement for the isolated side (VDD1) and provides a compatible 3 V to 5.5 V supply for the digital interface (VDD2).

ADCs/DACs - Special Purpose Part Context

This part belongs to the ADuM7701 series of isolated Sigma-Delta modulators. It serves as a direct replacement for traditional optoisolator solutions in high-voltage sensing applications. The device integrates the modulator and isolation barrier on a single chip to reduce board space and improve performance.

ADCs/DACs - Special Purpose Replacement Considerations

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