描述 Description

The ZSSC3135 is a member of the ZSSC313x product family of CMOS integrated circuits designed for automotive and industrial sensor applications. All family members are well suited for highly accurate amplification and sensor-specific correction of resistive bridge sensor signals. An internal 16-bit RISC microcontroller running a correction algorithm compensates sensor offset, sensitivity, temperature drift, and nonlinearity of the connected sensor element. The required calibration coefficients are stored by the single-pass calibration procedure in an on-chip EEPROM. The ZSSC3135 is specially designed for piezo-resistive bridge sensor elements. The amplification stage with an analog gain of 105 in combination with the optional temperature compensation using an external temperature sensor fits the requirements of piezo-resistive sensor applications perfectly.

特性 Features

? Adjustable to nearly all resistive bridge sensor types, analog gain of 105, overall gain up to 420
? Sample rate up to 200 Hz
? ADC resolution 13/14 bit
? Safety functionality sensor connection
? External temperature sensor
? Digital compensation of sensor offset, sensitivity, temperature drift and nonlinearity
? Output options: ratiometric analog voltage output (5% to 95% maximum, 12.4 bit resolution) or ZACwire? (digital one-wire-interface)
? Sensor biasing by voltage
? High voltage protection up to 33V
? Supply current: max. 5.5mA
? Reverse polarity and short circuit protection
? Operation temperature range as wide as -40°C to +150°C
? Traceability by user-defined EEPROM entries