ZSSC4151AE2R

ZSSC4151AE2R is an automotive sensor signal conditioner with analogue output. This CMOS integrated circuit for highly accurate amplification and sensor-specific correction of resistive bridge sensor signals. The digital compensation of sensor offset, sensitivity, temperature drift, and non-linearity is accomplished via an internal 16bit RISC microcontroller running a correction algorithm, with calibration coefficients stored in an integrated EEPROM. It is adjustable to nearly all resistive bridge sensor types. The measured values are provided at the analogy voltage output and at the optional digital I²C or the ZAC wire™ interface, also referred to as the one-wire interface. The digital interfaces can be used for a simple PC-controlled calibration procedure to program a set of calibration coefficients into an onchip EEPROM. The calibration equipment communicate digitally, so the noise sensitivity is greatly reduced.

• Digital compensation of sensor offset, sensitivity, temperature drift, and non-linearity
• Adjustable to nearly all full or half bridge sensors
• Sensor biasing by internal voltage
• 7mA maximum supply current
• Short-circuit protection for AOUT
• Traceability via user-defined registers
• Bridge sensor signal ADC resolution range from 12 to 18bit
• Output resolution 12bit analogy output, signed 16bit readout for raw data acquisition
• 24 pin VFQFPN package temperature range from -40 to 150°C