AudioDIWHY
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Description
Analog to Digitial Converter (ADC) 14 bit SPI breakout board based on MCP33151
I needed an inexpensive SPI based breakout board for 14 bit ADC. This higher resolution is for an audio Volt per octave board, where 12 bits wasn't accurate enough.
I couldn't find any affordable ADC BoBs beyond 12 bits so I drew one up myself.
In short, the MCP33151 is a great choice for makers: it is inexpensive, easy to use, and super easy to program.
The BoB in this project has necessary 1206 SMD filter capacitors and fits into a 14 pin DIP socket. The main IC is MSOP so some familiarity with soldering SMD parts is necessary.
Want to read more about this BoB? Blog post is about the project is here:
https://audiodiwhy.blogspot.com/2022/11/mcp33151-14-bit-adc-breakout-board.html
Code
C library with main.c test code
https://github.com/cslammy/RP2040_MCP33151LIB
Schematic and Layout
BOM
BOM--MCP33151 BoB.txt
eagle files
MCP33151 BOB 11-7-22 eagle files.zip
PDF for board and Schem
mcp33151 bob layout and schem.pdf
lab notes PDF format
lab notes MCP33151 bob.zip
Nov 27,2022
885 views
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Analog to Digitial Converter (ADC) 14 bit SPI breakout board based on MCP33151
Inexpensive high performance 14 bit ADC on a 14 pin DIP Breakout Board
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Published: Nov 27,2022
Download Gerber file 1
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