ZMD31050

ZMD31050 is a CMOS integrated circuit for highlyaccurate amplification and sensor-specific correction of bridge sensor signals. The device provides digital compensation of sensor offset, sensitivity, temperature drift and non-linearity by a 16-bit RISC micro controller running a correction algorithm with correction coefficients stored in non-volatile EEPROM.

The ZMD31050 accommodates virtually any bridge sensor (e.g. piezo-resistive, ceramic-thickfilm or steel membrane based). In addition, the IC can interface a separate temperature sensor.

The bi-directional digital interfaces (I²C, SPI, ZACwire^TM) can be used for a simple PC-controlled one-shot calibration procedure, in order to program a set of calibration coefficients into an on-chip EEPROM. Thus a specific sensor and a ZMD31050 are mated digitally: fast, precise and without the cost overhead associated with laser trimming, or mechanical potentiometer methods.

§ Application kit available (SSOP16 samples, calibration PCB, calibration software, technical documentation)
§ Support for industrial mass calibration available
§ Quick circuit customization possible for large production volumes