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Si8922 - Isolated Amplifiers

Download the Si8922 datasheet PDF. This datasheet also covers the Si8921 variant, as both devices belong to the same isolated amplifiers family and are provided as variant models within a single manufacturer datasheet.

General Description

The Si8921 and Si8922 galvanically isolated analog amplifiers feature low-voltage differential input, ideal for measuring voltage across a current shunt resistor or any place where a sensor must be isolated from the control system.

Key Features

  • Low-voltage differential input: ±62.5 mV and ±250 mV options.
  • Low signal delay: 0.8 µs.
  • Typical input offset: ±0.40 µV.
  • Typical gain error: ±0.06%.
  • Excellent drift specifications - 0.5 µV/°C offset drift -.
  • 9 ppm/°C typical gain drift.
  • Typical nonlinearity: 0.003% full-scale.
  • Typical SNR: 82 dB over 100 kHz bandwidth.
  • Typical THD:.
  • 88 dB.
  • High common-mode transient immunity: 75 kV/µs.
  • Autom.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (Si8921-Skyworks.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
Si8920 Isolated Amplifier Skyworks Solutions
Si8920 ISOLATED AMPLIFIER Silicon Laboratories
SI8900 ISOLATED MONITORING ADC Silicon Laboratories
SI8900EDB Bi-Directional N-Channel MOSFET Vishay Siliconix
Si8901 Ring Demodulator/Balanced Mixer Siliconix

Other Datasheets by Skyworks Solutions

Part Number Description
Si8921 Isolated Amplifiers
Si8900 ISOLATED MONITORING ADC
Si8901 ISOLATED MONITORING ADC
Si8902 ISOLATED MONITORING ADC
Si8935 Delta-Sigma Modulator

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
DATA SHEET Si8921 and Si8922 Isolated Amplifiers for Current Shunt Measurement Applications • Industrial, HEV and renewable energy inverters • AC, brushless, and DC motor controls and drives • Variable speed motor control in consumer white goods • Isolated switch mode and UPS power supplies • Automotive on-board chargers, battery management systems, and charging stations Features • Low-voltage differential input: ±62.5 mV and ±250 mV options • Low signal delay: 0.8 µs • Typical input offset: ±0.40 µV • Typical gain error: ±0.06% • Excellent drift specifications - 0.5 µV/°C offset drift - –9 ppm/°C typical gain drift • Typical nonlinearity: 0.