ADUM3190WTRQZ-RL7

Overview

The ADUM3190WTRQZ-RL7 is a high stability isolated error amplifier utilizing iCoupler technology. It features a 1.225 V reference, 400 kHz bandwidth, and 2.5 kVrms isolation voltage. Operating on dual supplies from 3 V to 20 V, it delivers ±1% accuracy over the temperature range of -40°C to +125°C. The device includes a 10 MHz gain-bandwidth product op amp and outputs EAOUT (±3 mA) and EAOUT2 (±1 mA). It is qualified for automotive applications under AEC-Q100 standards.

Feature Summary

• Provides stable isolated feedback without lifetime drift associated with optocouplers
• Integrates a precision 1.225 V reference voltage source
• Supports Type II or Type III compensation networks for loop stability
• Offers galvanic isolation with UL and IEC safety approvals

Applications

• Linear power supplies
• Inverters
• Uninterruptible Power Supply (UPS)
• DOSA-compatible modules
• Voltage monitors

Procurement Notes

Verify the specific suffix WTRQZ-RL7 against the manufacturer's current ordering guide to confirm package type and reel specifications. Ensure compatibility with AEC-Q100 automotive qualification requirements if used in vehicle systems. Confirm insulation ratings match system safety standards before integration.

Selection Notes

Select this component when high stability and fast transient response are required compared to traditional optocoupler solutions. The integrated reference simplifies design by removing external precision voltage sources. Consider the 400 kHz bandwidth for applications requiring faster loop reaction times than standard shunt regulators allow.

Part Context

This part belongs to the ADuM3190 family of isolated error amplifiers. It replaces discrete optocoupler and shunt regulator combinations in primary-side control loops. The QSOP-16 package provides a compact solution for maintaining isolation barriers in space-constrained power electronics designs.

Replacement Considerations

Direct substitutes include other ADuM3190 variants such as ADUM3190BRQZ-RL7 or ADUM3190WSRQZ-RL7, depending on required temperature grades and output drive characteristics. Verify pinout and electrical parameters match before substitution.