
Description:
The ADS1115 16-Bit I2C ADC Module is a high-precision analog-to-digital converter designed to expand the analog input capabilities of microcontrollers such as Arduino, Raspberry Pi, ESP32, ESP8266, and other embedded systems. Featuring 4 analog input channels, 16-bit resolution, and a built-in programmable gain amplifier (PGA), this module delivers accurate and reliable sensor measurements for IoT, robotics, automation, and data acquisition projects.
With its I2C communication interface, the ADS1115 minimizes GPIO usage while providing excellent noise performance and precise analog signal conversion. The adjustable gain settings allow measurement of both low-voltage and higher-voltage signals, making it ideal for reading sensors, batteries, current monitors, and other analog devices.
Perfect for makers, students, engineers, and hobbyists looking to add high-resolution analog sensing capabilities to their electronics projects.
Specifications:
- Model: ADS1115 ADC Module
- ADC Resolution: 16-Bit
- Communication Protocol: I2C Interface
- Operating Voltage: 2.0V–5.5V DC
- Analog Input Channels: 4 Single-Ended Inputs (AN0–AN3) or 2 Differential Inputs
- Input Voltage Range: 0V to VDD
- Programmable Gain Amplifier (PGA): Integrated
- Selectable Full-Scale Input Ranges:
- ±0.256V
- ±0.512V
- ±1.024V
- ±2.048V
- ±4.096V
- ±6.144V
- Programmable Data Rate: 8 SPS to 860 SPS
- Power Consumption: 150μA (Typical Continuous Conversion Mode)
- Operating Modes: Continuous Conversion & Single-Shot (Auto Power-Down)
- I2C Addresses: 0x48, 0x49, 0x4A, 0x4B
- Logic Compatibility: 3.3V and 5V Systems
- Compatible Boards: Arduino Uno, Nano, Mega, Raspberry Pi, ESP32, ESP8266, STM32, and other I2C-enabled microcontrollers


Features:
- High-precision 16-bit ADC for accurate analog signal conversion
- 4-channel analog input support (or 2 differential inputs)
- Built-in Programmable Gain Amplifier (PGA)
- Easy-to-use I2C interface with configurable addresses
- Compatible with Arduino, Raspberry Pi, ESP32, ESP8266, and STM32
- Low power consumption for portable and battery-powered projects
- Ideal for sensor interfacing, data logging, IoT, robotics, and industrial applications
Applications:
- Portable instrumentation
- Consumer goods
- Battery monitoring
- Temperature measurement
- Factory automation and process controls
- Sensor Interfacing
- Data Logging
- IoT
- Robotics
- Industrial Monitoring
Pin Description:

Package Included:
1 x ADS1115 16 Bit I2C ADC Module