The PGA300 is an interface device for piezoresistive and strain gauge pressure sense elements. The device incorporates analog front end that directly connects to the sense element and has voltage regulators and an oscillator. The device also includes a sigma-delta analog-to-digital converter and temperature and nonlinearity compensation. The PGA300 includes multiple output interfaces such as absolute voltage, ratiometric voltage, and 4- to 20-mA current output.

• Analog Features
  • Analog Front-End for Resistive Bridge Sensors
  • On-Chip Temperature Sensor
  • Programmable Gain
  • 16-Bit Sigma-Delta Analog-to-Digital Converter for Signal Channel
  • 16-Bit Sigma-Delta Analog-to-Digital Converter for Temperature Channel
  • 14-Bit Output DAC
• Digital Features
  • On-Chip Oscillator
  • Second Order Gain, Offset, and Nonlinearity TC Compensation
  • 128 Bytes EEPROM
• Peripheral Features
  • One-Wire Interface
  • 4- to 20-mA Current Loop Interface
  • Ratiometric and Absolute Voltage Output
  • Power Management Control
  • Analog Low-Voltage Detect
• General Features
  • Industrial Temperature Range: –40°C to 150°C
  • Power Supply:
    • Depletion MOSFET Gate Controller
    • ABSMAX: –28 to 33 V
    • Operational: 3.3 to 30 V
  • Package Options:
    • WCSP-36
    • QFN-36