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Si8931 - Isolated Analog Amplifier

General Description

The Si8931 and Si8932 galvanically isolated analog amplifiers feature 2.5 V input range and are optimized for isolated voltage sensing applications.

The output is a differential analog signal (Si8931) or a single-ended signal (Si8932) proportional to the input voltage.

Key Features

  • 0 to 2.5 V nominal input voltage.
  • Low signal delay: 1 µs.
  • Typical input offset: 0.16 mV.
  • Typical gain error: ±0.06%.
  • Excellent drift specifications - 0.75 µV/°C offset drift - 6 ppm/°C typical gain drift.
  • Typical nonlinearity: 0.01%.
  • Typical SNR: 76 dB.
  • High common-mode transient immunity: 75 kV/µs.
  • Automotive-grade OPNs available - AEC-Q100 qualification - AIAG-compliant PPAP documentation support - IMDS and CAMDS.

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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.

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DATA SHEET Si8931 and Si8932 Isolated Analog Amplifier Applications • Industrial, HEV and renewable energy inverters • AC, brushless, and DC motor controls and drives • Variable speed motor control in white goods • Isolated switch mode and UPS power supplies • General industrial data acquisition and sensor interface • Automotive on-board chargers, battery management systems, and charging stations Features • 0 to 2.5 V nominal input voltage • Low signal delay: 1 µs • Typical input offset: 0.16 mV • Typical gain error: ±0.06% • Excellent drift specifications - 0.75 µV/°C offset drift - 6 ppm/°C typical gain drift • Typical nonlinearity: 0.