ZMD31035

The ZMD31035 is a CMOS integrated circuit for highlyaccurate amplification and sensor-specific correction of bridge sensor signals. Digital compensation of sensor offset, sensitivity, temperature drift and non-linearity is accomplished via a 16-bit RISC micro-controller running a correction algorithm with calibration coefficients stored in a non-volatile EEPROM.

The ZMD31035 is adjustable to nearly all piezo-resistive bridge sensors. Measured values are provided at the analog voltage output or at the one-wire-interface.

The digital one-wire-interface can be used for a simple PC-controlled calibration procedure, in order to program a set of calibration coefficients into an on-chip EEPROM.

Thus a specific sensor and a ZMD31035 are mated digitally: fast, precise and without the cost overhead associated with trimming by external devices or laser.

The ZMD31035 is optimized for automotive environments by it's protection circuitry and excellent electromagnetic compatibility.