Delta-Sigma Pi 18 bit Analogue to Digital converter

£20.39 each

Excluding VAT: £16.99

28 in stock


Product Code: DELTAV1


Tags

The Delta-Sigma Pi is an 8 channel analogue to digital converter designed for use on the Raspberry Pi computer platform. The board is based around the MCP3424 low noise and high accuracy 18 bit delta-sigma analogue to digital converter from Microchip Technology Inc.  A pair of MCP3424 converters are included on the board along with an I2C buffer interface allowing you to connect additional 5V I2C devices to the same bus.

The I2C address bits are selectable using the on-board jumpers.  The MCP3424 supports up to 8 different I2C addresses so with two A/D converters on each Delta-Sigma Pi you can stack up to 4 Delta-Sigma Pi boards on a single Raspberry Pi giving you 32 ADC inputs.

The MCP3424 contains an on-board 2.048V reference voltage with an input range of ±2.048V differentially (full scale range of 4.096V/PGA).  A programmable Gain Amplifier gives the user a selectable gain of x1, x2, x4 or x8 before the analogue to digital conversion takes place.

The data rate for analogue to digital conversions is 3.75 (18 bit), 15 (16 bit), 60 (14 bit) or 240 (12 bit) samples per second. Data rate and resolution can be configured within software using the I2C interface.

The Delta-Sigma Pi is pin compatible with the the Raspberry Pi model B+ but the mounting hole will not be usable.

Additional Information:

Datasheets

Delta Sigma Pi V2.0 Address Configuration and Specification

BSN20

MCP3424

Input Ratings & Specifications

Maximum voltage on ADC inputs: ± 2.048V

Maximum current on i2c port: 100mA.

Schematic

Click to download
Click to download schematic PDF.

Sample Code

We have python libraries available for this expansion board.  You can download all of the libraries from github at:

https://github.com/abelectronicsuk/ABElectronics_Python_Libraries

To download the libraries to your Raspberry Pi type in terminal:

git clone https://github.com/abelectronicsuk/ABElectronics_Python_Libraries.git

 

The datasheet for the Deta Sigma Pi version 1 can be downloaded here

 

Sorry there are not any current customer reviews for this item.


Write your own review

How do you rate this product?
  star rating star ratingstar rating star ratingstar ratingstar rating star ratingstar ratingstar ratingstar rating star ratingstar ratingstar ratingstar ratingstar rating
Features
Build Quality
Assembly
Ease of Use
Performance
 
   Name:
   Review Title:
   Your Review:
 
  All fields are required.

Customers who bought this item also purchased...