ADS1115 - Convertisseur ADC - 16bits - I2C
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ADS1115 - ADC converter - 4 channel, 16bits - I2C

  • 16 bits ADC Converter
  • 4 channels (or 2 differential channels)
  • Programmable gain amplifier
  • Continuous sampling (up to 860 samples/second)
€18.80 (tax incl.) €15.54 (tax excl.)
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4 channels ADC converter with programmable gain amplifier

This breakout will come just in time for micro-controllers that don't have analog-to-digital converters or when you need a converter with increased accuracy. The ADS1115 has a 16-bit precision and is capable of performing 860 samples per second via the I2C bus. 

The chip can be configured as:

In super bonus, this circuit also includes a programmable gain amplifier, up to x16, handy for measuring low signals (or low differential variations) over the full range of sampling.

This converter really has something to be loved because: 

  • It can work with a supply/logic voltage from 2V to 5 volts (so Arduino, Trinket, Flora, Due, Raspberry-Pi, etc) 
  • It is able to measure a wide variety of signals
  • It is super easy to implement.

This is a 16-bit general purpose converter really great.

The integrated circuit being really small, it is mounted on a Breakout with ferrites to maintain AVDD and AGND stable. Interfacing is done using the I2C bus.
The I2C address is modifiable among the 4 available (see data sheet, table 5), which allows to connect up to 4 ADS1115 converters on a simple I2C bus to add 16 precision analog inputs. 

Technical details

  • Wide power supply range: 2.0V to 5.5V
  • Low current consumption:
    • only 150µA in continuous mode
    • Automatic shutdown in Single-Shot Mode (Auto Shut-Down)
  • Programmable acquisition speed: from 8 to 860 sampling per second.
    (Programmable data rate: 8SPS to 860SPS)
  • Intern Oscillator
  • Intern PGA
  • I2C Interface: address selectable with weld jumper.
  • 4 simple analog inputs OR 2 differential inputs
  • Programmable comparator
  • Data sheet


This breakout is very simple to use.


  • GND on the mass,
  • VDD on the supply voltage of your logic (5V for Arduino, 3.3V for Raspberry-Pi) 
  • SCL/SDA on the I2C bus of your micro-controller

Then run the sample code (see tutorial section below) to start reading the data.