AD7402-8BRIZ-RL

ADCs/DACs - Special Purpose Overview

The AD7402-8BRIZ-RL is a 16-bit isolated Sigma-Delta modulator from Analog Devices. It features an internal 10 MHz clock and converts analog signals into a high-speed single-bit data stream using iCoupler technology for digital isolation. The device accepts a differential input range of ±320 mV (±250 mV specified) and operates on a 4.5 V to 5.5 V analog supply (VDD1) and a 3 V to 5.5 V digital supply (VDD2). Key performance metrics include an 87 dB typical SNR, 13.5 ENOB at 39 kSPS, and >25 kV/µs common-mode transient immunity. It is housed in an 8-lead wide-body SOIC package.

ADCs/DACs - Special Purpose Feature Summary

• Integrated iCoupler digital isolator with >25 kV/µs CMTI
• 16-bit resolution with no missing codes and 87 dB SNR
• Internal 10 MHz clock and on-chip voltage reference
• Wide operating temperature range: -40°C to +150°C

ADCs/DACs - Special Purpose Applications

• Shunt current monitoring in high-voltage systems
• AC motor controls and drives
• Power and solar inverters
• Wind turbine inverters
• Data acquisition systems requiring galvanic isolation

ADCs/DACs - Special Purpose Procurement Notes

Verify the ordering suffix '-RL' corresponds to the reel packaging configuration as specified in the manufacturer's ordering guide. Confirm that the specific revision level meets the required safety certifications, such as UL 1577 or DIN EN IEC 60747-17, for the intended application environment.

ADCs/DACs - Special Purpose Selection Notes

Select this component when high-density digital isolation is required within a compact 8-lead package. Ensure the external digital filter supports a sinc3 architecture with a 256 decimation rate to achieve the specified 16-bit resolution at 39 kSPS. Verify that the system can accommodate the ±320 mV full-scale input range.

ADCs/DACs - Special Purpose Part Context

This part belongs to the AD740x family of 16-bit isolated Sigma-Delta modulators. The '8BRI' designation indicates the 8-lead wide-body SOIC package variant designed to increase creepage distance. The '-Z' suffix denotes lead-free composition, while '-RL' specifies the tape and reel shipping format.

ADCs/DACs - Special Purpose Replacement Considerations

Direct replacements within the same family include the AD7401 and AD7403, which share similar isolation and modulation characteristics but may differ in pinout or specific electrical parameters. Verify compatibility with existing PCB layouts and digital filter implementations.