Wheatstone bridge-based resistive sensor interface ASIC in 0.65u CMOS
ICsense integrated a low-power magnetic sensor interface ASIC for automotive applications with the sensor element on a single die. Our designers developed the electrical VHDL-AMS sensor model to perform mixed-signal co-simulations. We successfully delivered a complete signal conditioning chain at 2.5V (in a 0.65u CMOS node), including an ultralow-power 12-bit ADC and a complete digital algorithm for signal processing and automatic interface calibration.
Features:
- Ultralow power, 2.5V
- Wheatstone bridge readout
- 12-bit accuracy
- VHDL-AMS model of the sensor
- Automotive qualified
- 0.65u BiCMOS technology
- Temperature range of -40°C to 150°C (peaks to 200°C allowed)