×

Sparkfun support will be closed from 3:00PM to 4:15PM on April 27th for a company-wide townhall meeting. We will resume regular hours on the 28th.

Creative Commons images are CC BY-NC-SA 3.0

Description: The MCP3002 has a 10-bit analog to digital converter (ADC) with a simple to use SPI interface. Use this IC if your microcontroller does not have an ADC or have enough ADC lines. A great chip when you need to add additional ADC lines.

Features:

  • 2.7V to 5.5V supply
  • 10-bit resolution
  • 8-pin DIP package
  • 3 wire SPI interface
  • Up to 75,000 samples per second
  • Low power shutdown

Documents:Datasheet

Recommended Products

Customer Comments

  • I want to use this chip with the ESP 8266 Dev Board which lacks a sufficient 0-5v ADC. Is there a library for use with this chip? I have never used an SPI device without a library…How does one go about doing this?

  • You should stock a more precise version, 16 bit or something, and with an external Reference.

  • Not mentioned in review, this is a dual ADC. One IC gives you 2 analog lines

  • Are there any tutorials or examples of this in use? Specifically, I would like to achieve the maximum sampling rate on both inputs when used with an arduino. I’ve got a lot of samples to take, then compress, then send over a bluetooth connection. Think HUGE multi-touch mousepad!

  • will there be a BOB for this?

    • its a DIP. do you really need a breakout board for one

      • I would enjoy a breakout board for interfacing with jumper cables. A standardized 8 pin breakout board is what we are looking for.

  • Could i use to say, convert the analog uadio input from an headphone socket to something usable by the arduino?

  • 75 000 samples per second @ 2.7V, 200 000 @ 5V.

  • I’d love to see this in the SparkFun Eagle library.

  • Is it possible to daisy chain multiple MCP3002 chips together?

  • Datasheet PDF wont load or download. Broken ?

  • Help Please. I have tried bit-banging and the SPI lib. I’ve found some code for the 3008 and tried to modify that. I’ve tried it with all diff wiring configs. Used 2 Uno’s and a Uno32 with 3 diff 3002’s. Can you post any code? I’ll even take .NET written for an ARM with good documentation.

  • Could you use this to transmit a raw analog feed (like video, audio, resistor values) over a serial modem and (not using this one of course) have them converted back to analog.

    • You’d need a microcontroller to interface with the ADC and spit out “normal” serial data, but yeah that should work. It won’t have a high enough sampling rate to decode video, however. At least not standard composite video.

Customer Reviews

5 out of 5

Based on 1 ratings:

Currently viewing all customer reviews.

6 of 7 found this helpful:

Works great

It’s easy to use, the datasheet is excellent, and it is much faster that the built-in ADC on the Arduino. Just note that that it needs a low resistance source (see pages 11-12 of the datasheet for details), so use an op-amp if your source has high resistance, especially if you’re sampling very quickly.

Related Tutorials

Bark Back Interactive Pet Monitor

March 8, 2017

Monitor and interact with pets through this dog bark detector project based on the Raspberry Pi!