ab-adc-differential-pi part1

src/fr/overlay/ab-adc-differential-pi.md

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+<!--
+---
+name: ADC Differential Pi
+class: board
+type: adc
+formfactor: HAT
+manufacturer: AB Electronics
+description: 8 channel Analogue to Digital Converter
+url: https://www.abelectronics.co.uk/p/65/ADC-Differential-Pi-Raspberry-Pi-Analogue-to-Digital-converter
+github: https://github.com/abelectronicsuk
+buy: https://www.abelectronics.co.uk/p/65/ADC-Differential-Pi-Raspberry-Pi-Analogue-to-Digital-converter
+image: 'ab-adc-differential-pi.png'
+pincount: 40
+eeprom: no
+power:
+  '1':
+  '2':
+ground:
+  '6':
+  '9':
+  '14':
+  '20':
+  '25':
+  '30':
+  '34':
+  '39':
+pin:
+  '3':
+    mode: i2c
+  '5':
+    mode: i2c
+i2c:
+  '0x68':
+    name: MCP3424
+    device: MCP3424
+  '0x69':
+    name: MCP3424
+    device: MCP3424
+-->
+#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
+
+Arduino, C, Node.js, Windows 10 IOT, Python 2 and Python 3 libraries available on GitHub.