SI8936B-AS

ADCs/DACs - Special Purpose Overview

The Skyworks SI8936B-AS is an automotive-grade, galvanically isolated delta-sigma modulator optimized for voltage sensing. It features a nominal 0 to 2.5 V input range and utilizes a second-order modulator to digitize the analog signal into a 1-bit data stream. The device incorporates an internal 10 MHz clock generator, eliminating the need for external clocking circuitry. It provides high common-mode transient immunity of 75 kV/µs and supports up to 2.5 kVRMS isolation voltage per UL 1577. The component operates within a temperature range of –40 °C to +125 °C and is available in an 8-pin narrow body SOIC package.

ADCs/DACs - Special Purpose Feature Summary

• Internal 10 MHz DSM clock generation
• Automotive-grade AEC-Q100 qualification with AIAG-compliant PPAP support
• High common-mode transient immunity (75 kV/µs)
• Nominal 0 to 2.5 V single-ended input voltage range

ADCs/DACs - Special Purpose Applications

• Automotive on-board chargers
• Battery management systems
• Charging stations

ADCs/DACs - Special Purpose Procurement Notes

Verify that the specific ordering suffix corresponds to the narrow body SOIC package and the 2.5 kVRMS insulation rating. Confirm that the automotive-grade variant includes the required AIAG-compliant PPAP documentation and IMDS/CAMDS listing support as specified by the manufacturer's quality standards.

ADCs/DACs - Special Purpose Selection Notes

Select this model when an internal clock source is preferred over an external one to simplify system design. Ensure the application requires the 2.5 kVRMS isolation level provided by the 'B' suffix; higher isolation requirements necessitate the 'D' suffix variant. Verify compatibility with the digital filter implementation in the downstream MCU or FPGA.

ADCs/DACs - Special Purpose Part Context

This component belongs to the Si8935/36/37 family of isolated delta-sigma modulators. The SI8936 variant is distinguished by its integrated 10 MHz oscillator, whereas the SI8935 accepts an external clock and the SI8937 features a 20 MHz internal clock. All variants share similar electrical characteristics but differ in clocking architecture and insulation ratings based on their specific suffixes.

ADCs/DACs - Special Purpose Replacement Considerations

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