SI8920AD-ISR

Overview

The SI8920AD-ISR is a single-channel isolated analog amplifier from the Si8920 series, designed for current shunt measurement applications. It features a differential input and output configuration with a 1200 Vrms insulation voltage rating. The device operates on a supply voltage between 3 V and 5.5 V, consuming 4.2 mA of operating current. Key electrical parameters include a 950 kHz 3dB bandwidth, 200 uV input offset voltage, and 0.5% gain error. It supports a maximum output current of 3.8 mA per channel with a power dissipation of 212 mW. The component is housed in a 16-pin SOIC package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Provides galvanic isolation for accurate signal transmission across potential differences
• Supports differential input and output configurations for noise rejection
• Optimized for high-precision current shunt measurement tasks

Applications

• Current shunt measurement systems
• Industrial process control loops
• Power supply monitoring circuits

Procurement Notes

Verify the specific suffix 'ISR' against the manufacturer's official datasheet to confirm the reel packaging format and tape specifications. Confirm RoHS compliance status through the latest product documentation. Check for obsolescence notices or lifecycle changes directly from Skyworks Solutions before finalizing procurement plans.

Selection Notes

Select this component when a single-channel isolated amplifier with a 1200 Vrms isolation barrier is required. Ensure the system design accommodates the 3 V to 5.5 V supply range and the 4.2 mA quiescent current draw. Verify that the 950 kHz bandwidth meets the signal frequency requirements and that the SOIC-16 package fits the PCB layout constraints.

Part Context

This part belongs to the Si8920 family of isolated amplifiers manufactured by Skyworks Solutions. These devices utilize CMOS technology to provide robust isolation capabilities. The family includes variants with different input ranges and packaging options, all sharing similar core performance characteristics for industrial isolation applications.

Replacement Considerations

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