Si8931/32 Isolated Amplifier For Voltage Measurement
The SI893x’s 0 to 2.25 V specified input range is ideal for isolated voltage sensing. Flexible output options include differential analog (Si8931) and single-ended analog (Si8932).
The Si893x provides excellent linearity with low offset and gain drift to ensure that accuracy is maintained over the entire operating temperature range. Exceptionally high common-mode transient immunity means that the Si893x delivers accurate measurements even in the presence of high-power switching as is found in motor drive systems and inverters.
The Si893x utilizes Skyworks' proprietary isolation technology. It supports up to 5.0 kVrms withstand voltage per UL1577. This technology enables higher performance, reduced variation with temperature and age, tighter part-to-part matching, and longer lifetimes compared to other isolation technologies.
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
- General industrial data acquisition and sensor interface
- Automotive onboard chargers, battery management systems, and charging stations