Sensor signal conditioner IC

Sensor signal conditioner IC
Products

Applications

  • Hydrogen sensors
  • COx sensors
  • NOx sensors
  • Pressure sensors
  • Temp / Humidity sensors

The SN13H is a sensor signal conditioning IC for highly accurate amplification, digitization, and sensor–specific correction of differential bridge sensor signals.
The SN13H is suitable for all resistive bridge sensors.

Digital compensation of sensor offset, sensitivity, non-linearity, and temperature drift is accomplished via a 32-bit RISC-V core.
Calibration coefficients and configuration data are stored in the SN13H non-volatile memory (NVM), which is reliable in automotive applications.

Measured values are provided via a ratio-metric analog signals, I2C, or SENT interface.

  • Supply voltage: 3.0 – 5.5 V
  • Interface voltage : 1.8 – 5.5 V
  • Temperature range : -40 to 125 °C (AEC-Q100 grade 1)
  • Internal LDO’s, OSC & PLL
  • 32-bit RISC-V core (40-MHz)
  • 32-kB eFlash & 16-kB SRAM with ECC
  • Analog, I2C, SENT interfaces
  • Constant current of voltage supply
  • Resistive Bridge sensing: 1-mV/V to 1000-mV/V
  • Self-calibration for heating sensors
  • 20-bit high resolution ADC
  • 12-bit calibration ADC
  • ISO-26262 ASIL-B