
Zentrum Mikroelektronik Dresden AG
Brief Description
ZSC31050 is a CMOS integrated circuit for highly accurate amplification and sensor-specific correction of bridge sensor and temperature sensor signals. The device provides digital compensation of sensor offset, sensitivity, temperature drift, and non-linearity by a 16-bit RISC microcontroller running a polynomial correction algorithm.
FEATUREs
● Digital compensation of sensor offset, sensitivity,
temperature drift, and nonlinearity
● Accommodates nearly all resistive bridge sensor
types (signal spans from 1mV/V up to 275mV/V)
● Digital one-pass calibration: quick and precise
● Selectable compensation temperature source:
bridge, thermistor, or internal or external diode
● Output options: voltage (0 to 5V), current
(4 to 20mA), PWM, I2C™, SPI, ZACwire™
(one-wire interface), alarm
● Adjustable output resolution (up to 15 bits) versus
sampling rate (up to 3.9kHz)
● Current consumption: 2.5mA (typical)
● Selectable bridge excitation: ratiometric voltage,
constant voltage, or constant current
● Input channel for separate temperature sensor
● Sensor connection and common mode check
(sensor aging detection)