ZMD31030 SSC Features:

• Digital compensation of sensor offset, sensitivity, temperature drift and non-linearity
• Adjustable to nearly all piezo-resistive bridge sensor types
• Digital one-shot calibration: quick and precise
• Selectable temperature compensation reference: internal or external diode
• Selectable separate input channel for an external temperature sensor
• Output options: PWM (bridge sensor signal) or LIN interface (bridge and temp. sensor signal)
• Digital sensor calibration via LIN interface
• Sampling rate typically 125Hz
• High voltage protection
• Reverse polarity and short circuit protection
• Operation temperature –40 to +125°C
• Supply voltage 8 to 18V

ZMD31030 Automotive Sensor Signal Conditioner with LIN Interface

The ZMD31030 is a CMOS integrated circuit that performs highly-accurate amplification/scaling and sensor-specific correction of bridge and temperature 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 digital LIN bus interface can be used for a simple PC-controlled calibration procedure, in order to program a set of calibration coefficients into an onchip EEPROM. Thus a specific sensor and a ZMD31030 are mated digitally: fast, precise and without the cost overhead associated with trimming by external devices or laser.

The ZMD31030 is optimized for automotive environments by it’s protection circuitry and excellent electromagnetic compatibility.

ZMD31030 SSC Benefits:

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

Compare the ZMD Family of Sensor Signal Conditioners