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ADC 16-bit ADS1115 4-Channel With PGA Breakout

Qwiic Ecosystem Qwiic Sensors
Sensors & Modules Input & Interaction
Interface ['i2c'] Qwiic Yes
The ADS1115 is a 16-bit ADC with 4 channels and PGA, perfect for precise analog signal measurement in Arduino and Raspberry Pi projects.

The ADS1115 16-Bit ADC delivers analog to digital conversion for precision measurement applications. This high-performance breakout board features Texas Instruments' industry-standard ADS1115 chip, providing 16-bit resolution at up to 860 samples per second with built-in programmable gain amplifier (PGA) for optimal signal conditioning. Perfect for Arduino, Raspberry Pi, and microcontroller projects requiring accurate analog signal measurement beyond standard 10-bit ADC capabilities.

With its wide 2V-5.5V supply range and I2C interface, the ADS1115 offers versatility for various measurement scenarios. The programmable gain amplifier provides selectable gains from ±6.144V down to ±0.256V full-scale range, enabling precise measurement of both large and small signals. Four single-ended channels can be configured as two differential pairs, while the built-in voltage reference ensures measurement stability. The qwiic connector system simplifies integration, eliminating wiring errors and enabling rapid prototyping for sensor networks, data acquisition systems, and precision measurement applications.

Applicable for sensor networks, building data acquisition systems, or upgrading Arduino projects with analog measurement capabilities, the ADS1115 provides the accuracy and reliability. With comprehensive documentation and professional EU manufacturing quality, this ADC module delivers precision in a maker-friendly package. With our extensive Arduino library, you can get started quickly, without soldering, using our Qwiic connector.

  • Voltage: 3.3V
  • Resolution: 16-bit
  • Number of channels: 4
  • I2C communication
  • Dimensions: 22 x 22 mm / 0.9 x 0.9 inch

Interface

Interface I2C
Qwiic Compatible Yes
I2C Address Default 0x48
I2C Address Changeable Yes
Breadboard Compatible Yes

Measurement

Measurement Types Voltage
Measurement Accuracy 16-bit ADC resolution

Power

Supply Voltage Min V 3.3
Supply Voltage Max V 3.3
Logic Level 3V3 Only
Operating Current (mA) 0.15

Other

Ic Part Number ADS1115
Start Here
1
Connect

Plug into any Soldered Dasduino or microcontroller with an easyC cable — no soldering required.

2
Install the library

Add the Soldered library for your language (below).

3
Run an example

Open the get-started example and read your first value.

What's in the Box
ADC 16-bit ADS1115 4-Channel With PGA Breakout (main product) 333095
Header pins (unsoldered)
Header pins included for all breadboard-compatible pins
Pinout
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