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SmartSens PNI ASIC

The PNI (11096) ASIC is a low cost magnetic measurement Application Specific Integrated Ciruit designed for use with PNI's magneto-inductive sensors. The PNI ASIC can control and measure three independent magneto-inductive sensors. Each sensor is individually selectable for measurement, and can also be individually configured for measurement resolution. The PNI ASIC has diagnostic modes and outputs to test the oscillator and counter circuits.

The bipolar differential measurement scheme used by the PNI ASIC makes the magnetic measurement inherently temperature independent. It also has the benefit of transforming the measurement range into a zero centered, positive/negative value.


  • Fast Sample Rate
    Up to 2000 samples/second
  • Digital Interface
    SPI protocol
  • Low Power
    <500 µA at 3 VDC
    <1 µA, idle mode
  • RoHS Compliant
  • Surface Mount Package
  • Wide Dynamic Range
    96 dB (16 bits) in hardware with 18 dB (3 bits) additional gain scaling available.