# Source: https://learn.adafruit.com/adafruit-4-channel-adc-breakouts.md

# Adafruit 4-Channel ADC Breakouts

## Overview

![ADS1115](https://cdn-shop.adafruit.com/970x728/1085-14.jpg )

![ADS1015](https://cdn-shop.adafruit.com/970x728/1083-11.jpg )

The ADS1115 and ADS1015 4-channel breakout boards are perfect for adding high-resolution analog to digital conversion to any microprocessor-based project. &nbsp;These boards can run with power and logic signals between 2v to 5v, so they are compatible with all common 3.3v and 5v processors. &nbsp;As many of 4 of these boards can be controlled from the same 2-wire I2C bus, giving you up to 16 single-ended or 8 differential channels. &nbsp;A programmable gain amplifier provides up to x16 gain for small signals.  
  
These two boards are very similar, differing only in resolution and speed. The ADS1115 provides 16-bit precision at 860 samples/second, while the ADS1015 provides 12-bit precision at 3300 samples/second.

![stemma](https://cdn-shop.adafruit.com/970x728/1085-13.jpg )

To get you going fast, we spun up a custom-made PCB in the[&nbsp; **STEMMA QT** &nbsp;form factor](https://www.adafruit.com/?q=stemma%20qt%20sensor "STEMMA QT form factor"), making it easy to interface with. The&nbsp;[STEMMA QT connectors](https://learn.adafruit.com/introducing-adafruit-stemma-qt/what-is-stemma-qt)&nbsp;on either side are compatible with the&nbsp;[SparkFun Qwiic](https://www.sparkfun.com/qwiic) I2C connectors. This allows you to make solderless connections between your development board and either the ADS1115 or ADS1015. You can chain the boards with a wide range of other sensors and accessories using a [**compatible cable**](https://www.adafruit.com/?q=stemma%20qt%20cable).

![ADS1115](https://cdn-shop.adafruit.com/970x728/1085-09.jpg )

## ADS1115 Features:

- WIDE SUPPLY RANGE: 2.0V to 5.5V
- LOW CURRENT CONSUMPTION: Continuous Mode: Only 150µA Single-Shot Mode: Auto Shut-Down
- PROGRAMMABLE DATA RATE: 8SPS to 860SPS
- INTERNAL LOW-DRIFT VOLTAGE REFERENCE
- INTERNAL OSCILLATOR
- INTERNAL PGA
- I2C INTERFACE: Pin-Selectable Addresses
- FOUR SINGLE-ENDED OR TWO DIFFERENTIAL INPUTS
- PROGRAMMABLE COMPARATOR
- This board/chip uses I2C 7-bit addresses between 0x48-0x4B, selectable with jumpers

![ADS1015](https://cdn-shop.adafruit.com/970x728/1083-06.jpg )

## ADS1015&nbsp;Features:

- WIDE SUPPLY RANGE: 2.0V to 5.5V
- LOW CURRENT CONSUMPTION: Continuous Mode: Only 150µA Single-Shot Mode: Auto Shut-Down
- PROGRAMMABLE DATA RATE: 128SPS to 3.3kSPS
- INTERNAL LOW-DRIFT VOLTAGE REFERENCE
- INTERNAL OSCILLATOR
- INTERNAL PGA
- I2C INTERFACE: Pin-Selectable Addresses
- FOUR SINGLE-ENDED OR TWO DIFFERENTIAL INPUTS
- PROGRAMMABLE COMPARATOR
- This board/chip uses I2C 7-bit addresses between 0x48-0x4B, selectable with jumpers

![](https://cdn-learn.adafruit.com/assets/assets/000/112/695/medium800/arduino_compatibles_bothTopAngle.png?1656446236)

Info: 

![](https://cdn-learn.adafruit.com/assets/assets/000/112/694/medium800/arduino_compatibles_sensors_2012_11_10_IMG_0756-1024.jpg?1656445789)

- [Next Page](https://learn.adafruit.com/adafruit-4-channel-adc-breakouts/pinouts.md)

## Featured Products

### ADS1115 16-Bit ADC - 4 Channel with Programmable Gain Amplifier

[ADS1115 16-Bit ADC - 4 Channel with Programmable Gain Amplifier](https://www.adafruit.com/product/1085)
For microcontrollers without an analog-to-digital converter or when you want a higher-precision ADC, the ADS1115 provides 16-bit precision at 860 samples/second over I2C. The chip can be configured as 4 single-ended input channels, or two differential channels. As a nice bonus, it even...

In Stock
[Buy Now](https://www.adafruit.com/product/1085)
[Related Guides to the Product](https://learn.adafruit.com/products/1085/guides)
### ADS1015 12-Bit ADC - 4 Channel with Programmable Gain Amplifier

[ADS1015 12-Bit ADC - 4 Channel with Programmable Gain Amplifier](https://www.adafruit.com/product/1083)
For microcontrollers without an analog-to-digital converter or when you want a higher-precision ADC, the ADS1015 provides 12-bit precision at 3300 samples/second over I2C. The chip can be configured as 4 single-ended input channels&nbsp;or two differential channels. As a nice bonus, it even...

In Stock
[Buy Now](https://www.adafruit.com/product/1083)
[Related Guides to the Product](https://learn.adafruit.com/products/1083/guides)
### STEMMA QT / Qwiic JST SH 4-Pin Cable - 50mm Long

[STEMMA QT / Qwiic JST SH 4-Pin Cable - 50mm Long](https://www.adafruit.com/product/4399)
This 4-wire cable is&nbsp;50mm / 1.9" long and fitted with JST SH female 4-pin connectors on both ends. Compared with the chunkier JST PH these are 1mm pitch instead of 2mm, but still have a nice latching feel, while being easy to insert and remove.

<a...></a...>

In Stock
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[Adafruit Assembled Pi Cobbler Breakout + Cable for Raspberry Pi](https://www.adafruit.com/product/914)
Now that you've finally got your hands on a [Raspberry Pi® Model B](http://www.raspberrypi.org/), you're probably itching to make some fun embedded computer projects with it. What you need is an add on prototyping Pi Cobbler from Adafruit, which can break out all those...

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[Full Sized Premium Breadboard - 830 Tie Points](https://www.adafruit.com/product/239)
This is a 'full-size' premium quality breadboard, 830 tie points. Good for small and medium projects. It's 2.2" x 7" (5.5 cm x 17 cm) with a standard double-strip in the middle and two power rails on both sides. You can pull the power rails off easily to make the...

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