ZMDI ZSSC3008 Sensor Signal Conditioning Integrated Circuit

ZMD announced their ZSSC3008 sensor signal conditioning integrated circuit. The ZSSC3008 IC features EEPROM signature, bridge connection checks, bridge input-short and open-bridge detection, power loss detection, and output current limits for short-circuit protection. The ZMD ZSSC3008 IC is adjustable to nearly all piezo-resistive bridge sensors. Measured and corrected bridge values are provided at the SIG pin, which can be configured as an analog voltage output or as a one-wire serial digital output. The ZSSC3008 is available in a SOP8 package. Prices start at $1.83 (1.40 EUR).

ZMD ZSSC3008 IC Features

  • Digital compensation of sensor offset, sensitivity, and non-linearity
  • Programmable analog gain and digital gain; accommodates bridges with spans < 1mV/V and high offset
  • On-board diagnostics and protection features
  • EEPROM signature, bridge connection checks, bridge input-short and open-bridge detection, power loss detection, and output current limits for short-circuit protection
  • Independently programmable high and low clipping levels
  • 24-bit customer ID field for module traceability
  • Output options: rail-to-rail ratiometric analog voltage (12-bit resolution), absolute analog voltage, digital one-wire interface
  • Fast power-up to data out response; output available 5ms after power-up
  • Typical current consumption ranges from 1mA down to 250µA
  • Response time is about 1ms
  • High voltage protection up to 30V with external JFET
  • Cost-effective solution for resistive bridge sensor systems that require second-order linearity correction for a wide range of sensors
  • Optimized for applications with sensors that do not require temperature compensation
  • Offset correction and gain programming to precisely calibrate the bridge output signal
  • Two analog and one digital outputs
  • Accuracy of 0.25 % over the -25 to +85°C range, and 0.5 % from -40 to +125°C

More info: Zentrum Mikroelektronik Dresden AG (ZMDI)