Brief Description
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.

FEATUREs
• Digital compensation of sensor offset, sensitivity,
   temperature drift and non-linearity
• Adjustable to nearly all piezo-resistive bridge sensors types
• Digital one-shot calibration: quick and precise
• Selectable temperature compensation reference:
   internal or external diode
• Output options: analog voltage (0 to 5V) or one-wire-interface
   (LIN compatible protocol)
• Digital sensor calibration via one-wire-interface
• Sampling rate typically 125Hz
• High voltage protection
• Reverse polarity and short circuit protection
• Operation temperature –40 to +125°C
• Supply voltage 4.5 to 5.5V

Benefits
• No external trimming components required
• PC-controlled configuration and calibration
   via one-wire interface – simple, low cost
• High accuracy (±0.1% FSO @ -25 to 85°C;
   ±0.25% FSO @ -40 to 125°C)

APPLICATION Examples
• Detection of low-/overpressure in fuel tanks
• MAP Sensors
• Hydraulic reservoir pressure monitoring for ABS
   and power steering
• Engine management
• Comfort functions
• Tire pressure monitoring (in combination
   with wireless transmitters)