SI8932B-AS

Special Purpose Amplifiers Overview

The Skyworks SI8932B-AS is a galvanically isolated analog amplifier featuring a single-ended output. It operates within a 0 to 2.5 V nominal input range and provides a proportional single-ended voltage signal across the isolation barrier. The device utilizes CMOS isolation technology, supporting up to 5.0 kVRMS withstand voltage per UL1577 standards. It offers a typical gain error of ±0.06%, an input offset of 0.16 mV, and a bandwidth of approximately 600 kHz. The component is housed in an 8-pin narrow-body SOIC package.

Special Purpose Amplifiers Feature Summary

• Provides single-ended analog output proportional to the input voltage
• Features high common-mode transient immunity for accurate measurements in noisy environments
• Includes fail-safe output mode during supply loss for system diagnostics
• Supports automotive-grade qualification with AEC-Q100 compliance

Special Purpose Amplifiers Applications

• Automotive onboard chargers and battery management systems
• Industrial, hybrid electric vehicle, and renewable energy inverters
• AC, brushless, and DC motor controls and drives
• Isolated switch mode and uninterruptible power supplies (UPS)
• General industrial data acquisition and sensor interface

Special Purpose Amplifiers Procurement Notes

Verify the specific ordering suffix 'AS' corresponds to the narrow-body SOIC package configuration. Confirm that the automotive grade designation aligns with required AEC-Q100 qualification and AIAG-compliant PPAP documentation support. Ensure the insulation rating matches the application's safety regulatory requirements before finalizing procurement specifications.

Special Purpose Amplifiers Selection Notes

Select this component when a single-ended output is required for isolated voltage sensing applications. The device is suitable for designs needing high common-mode transient immunity and low signal delay. Consider the narrow-body SOIC package constraints regarding clearance and creepage distances if utilizing reinforced insulation ratings under CSA or VDE certifications.

Special Purpose Amplifiers Part Context

The SI8932B-AS belongs to the Si8932 family of isolated analog amplifiers from Skyworks Solutions. This series is designed for precision voltage-sensing tasks where galvanic isolation is necessary. The B-series variant specifically denotes a 2.5 kVRMS insulation rating, distinguishing it from higher-rated models in the broader product line.

Special Purpose Amplifiers Replacement Considerations

SI8932B-IS: Identical electrical performance but packaged in wide-body stretched SOIC-8.

Special Purpose Amplifiers FAQ

What is the fail-safe output voltage level?

When the high-side supply voltage VDDA is removed, the fail-safe output is nominally +2.8 V.

How does the device handle input signals exceeding the linear range?

Signals exceeding the maximum input voltage result in clipping at approximately 2.6 V peak-to-peak.