AD7403TRIZ-EP-RL7

ADCs/DACs - Special Purpose Overview

The AD7403TRIZ-EP-RL7 is an enhanced product, 16-bit isolated Sigma-Delta modulator from Analog Devices. It converts analog signals into a high-speed single-bit data stream using on-chip iCoupler digital isolation. The device operates with a 5V analog supply (VDD1) and accepts differential inputs of ±250 mV (±320 mV full-scale). It supports external clock frequencies from 5 MHz to 16 MHz. Key performance metrics include 88 dB typical SNR at 78.1 kSPS, 14.2 bits ENOB, and >25 kV/µs common-mode transient immunity. It features a wide-body SOIC-16 package for increased creepage.

ADCs/DACs - Special Purpose Feature Summary

• Enhanced Product (EP) qualification for defense and aerospace applications under AQEC standard
• Military temperature range operation from −55°C to +125°C
• Integrated on-chip digital isolator with >25 kV/µs common-mode transient immunity
• 16-bit resolution with no missing codes and 88 dB typical SNR

ADCs/DACs - Special Purpose Applications

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

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific ordering suffix RL7 indicates reel packaging when sourcing. Confirm that the EP designation ensures controlled manufacturing baseline, single assembly/test site, and single fabrication site as required for military or aerospace specifications. Check for available qualification data upon request directly from the manufacturer.

ADCs/DACs - Special Purpose Selection Notes

Select this component when military-grade temperature stability (−55°C to +125°C) and enhanced reliability are mandatory. Ensure the system requires a 5V analog supply and can accommodate the wide-body SOIC-16 footprint. Verify that the serial interface voltage (VDD2) matches the downstream logic levels, as it supports 3V to 5.5V ranges independently of the analog side.

ADCs/DACs - Special Purpose Part Context

This part belongs to the AD7403 family of isolated Sigma-Delta modulators. The AD7403TRIZ-EP-RL7 is the enhanced product variant specifically designed for rugged environments. It shares functional similarities with the commercial AD7403 but differs in operating temperature range, manufacturing control, and reliability qualifications suitable for defense applications.

ADCs/DACs - Special Purpose Replacement Considerations

Direct replacement with standard AD7403 variants is not recommended due to the lack of military temperature range and enhanced product controls. Verify pin compatibility if substituting with other isolated ADCs, noting that the wide-body SOIC package dimensions differ from standard SOIC packages.