Convertidor Analógico a Digital Diferencial de 8Ch de 18 Bits para Raspberry Pi

AB Electronics UKSKU:RB-Abu-02
Número de fabricante: ADCDIFFPI

Precio  :
Precio de oferta $18.29

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Stock  :
En existencia, 5 unidades

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Descripción

  • 8 x Entradas diferenciales de 18 bits
  • Control a través del puerto Raspberry Pi I2C
  • Apila hasta 4 Tarjetas ADC Diferenciales Pi en una sola Raspberry Pi
  • Direcciones I2C seleccionables por medio de jumpers
  • Puerto Buffer de 5V I2C

El Convertidor Analógico a Digital Diferencial de 8 Canales de 18 Bits para Raspberry Pi es un convertidor analógico a digital de 8 canales y 18 bits diseñado para funcionar con Raspberry Pi. El ADC Diferencial Pi se basa en dos convertidores A/DMCP3424 de Microchip que contienen cada uno 4 entradas analógicas. El MCP3424 es un convertidor A/D delta-sigma con entradas diferenciales de poco ruido.

Convertidor Analógico a Digital Diferencial de 8 Canales de 18 Bits para Raspberry Pi

El ADC Diferencial Pi se alimenta a través del host Raspberry Pi utilizando el puerto GPIO y los pines extendidos en el conector GPIO le permiten apilar el ADC Diferencial Pi junto con otras placas de expansión.

Convertidor Analógico a Digital Diferencial de 8 Canales de 18 Bits para Raspberry Pi

Convertidor Analógico a Digital Diferencial de 8 Canales de 18 Bits para Raspberry Pi

  • Vdd (pin 5V en bus I2C): 5.0V
  • Todas las entradas y salidas AD: VSS-0.4V a VDD + 0.4 V
  • Corriente en los pines de entrada: ± 2 mA
  • Voltaje I2C SDA / SCL: 5.0 V
  • Corriente de puerto I2C: 100 mA
  • Basado en el MCP3424 de Microchip Technologies Inc
  • Rango de entrada de ± 2.048V
  • Voltaje de referencia a bordo de 2.048V (Precisión ± 0.05%, Deriva: 15 ppm / ° C)
  • Amplificador de ganancia programable a bordo (PGA): ganancias de 1, 2, 4 u 8

Opciones de velocidad de datos programables:

  • 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.

Estimar envío

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