ADUM7702-8BRIZ

ADCs/DACs - Special Purpose Overview

The ADUM7702-8BRIZ is a 16-bit, isolated Sigma-Delta modulator from Analog Devices. It features an on-chip digital isolator based on iCoupler technology and operates with a main clock frequency between 5 MHz and 21 MHz. The device accepts a pseudo-differential analog input range of ±50 mV (±64 mV full-scale) and delivers a serial single-bit data stream. Key electrical specifications include a typical Signal-to-Noise Ratio (SNR) of 82 dB, an Effective Number of Bits (ENOB) of 13 bits, and a maximum power dissipation of 71.5 mW at VDD2 = 5.5 V. It supports an operating temperature range from −40°C to +125°C.

ADCs/DACs - Special Purpose Feature Summary

• Integrated high-speed digital isolation with a minimum common-mode transient immunity (CMTI) of 150 kV/µs.
• Second-order Sigma-Delta modulation architecture providing 16-bit resolution with no missing codes.
• Low offset drift of ±0.25 µV/°C and wide-body SOIC_IC package for increased creepage distance.
• Compatible with standard sinc3 digital filters to achieve 78.1 kSPS output rate at a 20 MHz clock.

ADCs/DACs - Special Purpose Applications

• Shunt current monitoring in high-voltage environments
• AC motor control systems
• 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 that the procurement channel provides valid traceability and authenticity guarantees for safety-certified components. Confirm compliance with RoHS directives and moisture sensitivity levels prior to finalizing acquisition.

ADCs/DACs - Special Purpose Selection Notes

Select this component when galvanic isolation is required for low-level differential signals up to ±64 mV. The 8-lead SOIC_IC package is suitable for designs prioritizing compact footprint while maintaining high creepage distances. Ensure the system design accommodates a 4.5 V to 5.5 V supply for the analog side and a 3 V to 5.5 V supply for the digital interface.

ADCs/DACs - Special Purpose Part Context

This part belongs to the ADuM7702 family of isolated Sigma-Delta modulators. It serves as a direct replacement for traditional optoisolators and ADC combinations in applications demanding high reliability and superior common-mode transient immunity. The device integrates the modulator and isolation barrier into a single monolithic structure.

ADCs/DACs - Special Purpose Replacement Considerations

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

ADCs/DACs - Special Purpose FAQ

What is the maximum main clock input frequency for the ADUM7702?

The maximum main clock input frequency (fMCLKIN) is 21 MHz.

How does the ADUM7702 handle analog input signals?

It utilizes a pseudo-differential input structure with a specified performance range of ±50 mV and a full-scale range of ±64 mV.

What is the rated dielectric insulation voltage (VISO)?

The rated dielectric insulation voltage is 5700 V rms for a 1-minute duration.