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ADC Differential Pi

The ADC Differential Pi is an 8 channel 18 bit analogue to digital converter designed to work with the Raspberry Pi. The ADC Differential Pi is based on two Microchip MCP3424 A/D converters each containing 4 analogue inputs. The MCP3424 is a delta-sigma A/D converter with low noise differential inputs.

Features

  • 8 x 18-bit differential inputs
  • Control via the Raspberry Pi I2C port
  • Stack up to 4 ADC Differential Pi boards on a single Raspberry Pi
  • Jumper selectable I2C addresses (8 choices)
  • Buffered 5V I2C port
  • Based on the MCP3424 from Microchip Technologies Inc
  • Input range of ±2.048V
  • On-board 2.048V reference voltage (Accuracy ± 0.05%, Drift: 15 ppm/°C)
  • On-Board Programmable Gain Amplifier (PGA): Gains of 1, 2, 4 or 8
  • Programmable Data Rate Options:
    • 3.75 SPS (18 bits)
    • 15 SPS (16 bits)
    • 60 SPS (14 bits)
    • 240 SPS (12 bits)
  • One-Shot or Continuous Conversion Options

Python, C, C++, Node.js and Windows 10 IOT libraries are available on GitHub.

Details

ADC Differential Pi