SI8902D-A01-GS

Analog To Digital Converters (ADC) Overview

The SI8902D-A01-GS is a 10-bit isolated monitoring ADC from Skyworks Solutions, featuring three single-ended analog input channels and an integrated SPI port. It utilizes CMOS isolation technology to provide up to 5 kVrms isolation voltage with a typical common-mode transient immunity of 45 kV/µs. The device operates on an analog supply of 2.7 V to 3.6 V and a digital supply of 2.7 V to 5.5 V. Key electrical specifications include a conversion time of 2.5 µs, ±1 LSB INL/DNL, and a maximum SPI data rate of 2 Mbps. It is housed in a 16-pin wide-body SOIC package.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a 10-bit SAR ADC subsystem with a three-channel multiplexer and programmable gain amplifier.
• Provides galvanic isolation via proprietary CMOS technology for robust performance in high-voltage environments.
• Features a full-duplex SPI serial interface supporting burst and demand data transmission modes.

Analog To Digital Converters (ADC) Applications

• Isolated data acquisition systems
• Solar inverters
• Switch mode power systems
• AC mains monitors

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches required isolation ratings and packaging formats. Check regulatory compliance documentation such as UL, CSA, and VDE certifications against current safety standards before integration into final designs.

Analog To Digital Converters (ADC) Selection Notes

Select this model when a 5 kVrms isolation rating is required alongside SPI connectivity. Compare against SI8902B variants if lower isolation levels suffice. Ensure the master controller supports the necessary SPI clock speeds and timing constraints defined in the datasheet for reliable data acquisition.

Analog To Digital Converters (ADC) Part Context

This component belongs to the Si890x family of isolated monitoring ADCs, which also includes UART (Si8900) and I2C/SMBus (Si8901) variants. All models share similar ADC architectures and isolation capabilities but differ in their serial communication interfaces. The D suffix specifically denotes the 5 kV isolation rating within this product line.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Skyworks Solutions for current alternative recommendations or obsolescence management strategies.