Si892x Automotive Isolated Amplifier

Si892x is a galvanically isolated automotive analog amplifier ideal for measuring voltage across a current shunt resistor or for any place where a sensor must be isolated from the control system. Si892x amplifiers offer low voltage and differential input while providing higher performance, reduced variation with temperature and age, tighter part-to-part matching, and longer lifetimes compared to other isolation technologies.

Si892x devices are based on our automotive grade production and use our proprietary isolation technology. This CMOS isolation technology offers a very low signal delay, allowing control systems to respond quickly to fault conditions or changes in load. Low offset and gain drift ensure accuracy is maintained over the entire operating temperature range. Exceptionally high common mode transient immunity enables the Si892x to deliver accurate measurements, even in the presence of the high power switching typically found in electric vehicle systems. The amplifiers support up to 5.0 kVrms withstand voltage per UL1577 with a differential analog signal output amplified by either 8.1x or 16.2x.

Common Mode Transient Immunity
75 kV/µs
Low signal delay
0.75 µs
Automotive grade
AEC-Q100 qualification

Common Specs

  • True automotive grade products with automotive qualifications, manufacturing, production test, and support
  • AEC-Q100 qualification
  • PPAP documentation and material listing system support (IMDS, CAMDS)
  • –40 to +125 °C temperature range
  • Low voltage differential input
    • ±100 mV and ±200 mV options
  • Low signal delay: 0.75 µs
  • Input referred offset: 0.2 mV
  • Gain error: <0.5%
  • Excellent drift specifications
    • 1 µV/°C offset drift
    • 60 ppm/°C gain drift
  • Nonlinearity: 0.1 % full-scale
  • Low noise: 0.10 mVrms over 100 kHz bandwidth
  • High common mode transient immunity: 75 kV/ µs
  • Compact packages:
    • 16-pin wide-body SOIC
    • 8-pin surface mount DIP
Find the Right Automotive Si892x Device Select Columns
Select Columns
Part Number Package Type Temperature Range (°C) Output Mode Isolation Rating Initial Accuracy
GW DIP8 -40 125 Analog 3.75 1.50%
GW DIP8 -40 125 Analog 3.75 0.75%

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