ZMDI ZSSC3170 Sensor Signal Conditioner IC for Automotive Applications

ZMD announced the ZSSC3170 sensor signal conditioner IC for resistive bridge sensors. The ZSSC3170 combines a fast and precise sensor conditioning IC with a robust LIN transceiver. The single-chip solution supports direct 12V supply provided by a vehicle’s power system. The ZMD ZSSC3170 are sampling now. The IC comes as die or in a SSOP20 package. Packaged parts are priced at €2.30 (USD 3.04) in low quantities. The sensor signal conditioner is ideal for air-conditioning, level measurement, seat adjustment applications in modern cars which require integrated LIN interface.

Zentrum Mikroelektronik Dresden AG (ZMDI) ZSSC3170 sensor signal conditioner IC for resistive bridge sensors

ZMD ZSSC3170 Features

  • Single chip solution
  • Special protection circuitry for harsh automotive environments
  • Can be calibrated in-system where coefficients are stored in on-chip automotive-grade EEPROM
  • Single-pass calibration technique — no external trimming components are required
  • Complies with LIN specifications 1.3 / 2.0 / 2.1
  • Configurable LIN publisher frame content
  • Data conversion rate of up to 430Hz fully utilizes the maximum LIN channel capacity of 20kbit/s
  • PWM high-side and low-side switches, support for LIN communication for end-of-line calibration
  • Digital compensation of offset, gain, temperature effects up to 2nd order, and nonlinearity up to 3rd order
  • Compensation of temperature sensor offset, gain, and nonlinearity up to 2nd order
  • Internal or external temperature reference
  • Media temperature sensing by diode or RTD
  • Load dump protection of the LIN pin up to ±40V
  • Operating temperature range: -40 to 125°C
  • Extended operating temperature range: up to 150°C
  • Accuracy (±0.25% FSO @ -20 to 85°C, ±0.50% FSO @ -40 to 125°C, ±1.00% FSO @ -40 to 150°C)
  • 3 EEPROM words available for optional use data
  • Measurand and temperature signal available via one output pin
  • Compatible with nearly all resistive bridge inputs
  • No external trimming components required
  • Single-pass calibration minimizes calibration costs
  • End-of-line calibration using sensor output
  • Optimized for automotive environments with special protection circuitry, excellent electro-magnetic compatibility, and numerous diagnostic features

More info: Zentrum Mikroelektronik Dresden AG (ZMDI)