8 Channel 18-bit Analog to Digital Differential Converter for Raspberry Pi

AB Electronics UKSKU: RB-Abu-02
Manufacturer #: ADCDIFFPI

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Sale price $19.69

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Description

8 Channel 18-bit Analog to Digital Differential Converter for Raspberry Pi

  • Vdd (5V pin on I2C bus): 5.0V
  • All AD inputs and outputs: VSS–0.4V to VDD+0.4 V
  • Current at Input Pins: ±2 mA
  • I2C SDA/SCL voltage: 5.0 V
  • I2C port current: 100 mA
  • 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)

Customer Reviews

Based on 3 reviews
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R
Ryan
great board good driver support for PI

I've ordered 6 of these so far, I've tried several due to my own wiring issues but they work great - I use them with piezo sensors to pick up vibrations.

G
Gyu-Tae
It's cute & easy to use!

I looked through this kind of the hat for raspberry pi for measuring the sensor signal. It's cute and easy to handle in programming, too. It's really fitting to my purpose.

M
M.J. Waterloo
Versatile and easy to set up ADC

I needed to measure six different vacuum pressures using 26PC SMT Series Pressure Sensors from Honeywell. As the sesnor outputs are low at 50 mV over the full range of 0-1000 hPa pressure (with 5 V power source), I needed a multi-channel high-resolution ADC to get accurate measurement. With a maximum ADC input of about 5 V, a 12 bits ADC would give me a resolution of about 24 hPa, which was not sufficiently precise. I therefore selected the 18 bits ADC that would give me a measurement resolution of 0.02 mV or 0.4 hPa. I received the package and it included the ADC PCB and the 40-pin connector to Raspberry Pi. The connector has to be soldered on the PCB by yourself, which may be difficult if you do not have the right tools and/or experience. I connected the ADC to the Raspberry Pi and downloaded the scripts from the ABElectronics Github repository. I tested both Python and C-scripts and received measurements from the sensors. Scripts are easily adapted to your needs. The ADC met my expectations and I am very satisfied with this product.

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