ADS1115 16-Bit ADC Module – 4-Channel I2C Precision Analog-to-Digital Converter
The ADS1115 ADC Module is a high-resolution 16-bit analog-to-digital converter (ADC) with a built-in I2C interface. Featuring 4 input channels and programmable gain, it allows precise analog voltage measurements for Arduino, Raspberry Pi, ESP32, STM32, and other microcontroller projects.
It is ideal for applications requiring accurate sensor data, such as temperature, pressure, and voltage monitoring, where onboard ADCs fall short in resolution and accuracy.
 
Key Features:
16-Bit ADC Resolution
Provides highly accurate readings compared to 10-bit/12-bit microcontroller ADCs.
4 Analog Input Channels
Use in single-ended or differential mode to measure up to 4 signals.
I2C Interface
Communicate using just two wires, supporting multiple modules on the same bus.
Programmable Gain Amplifier (PGA)
Allows fine tuning of input range (±6.144V to ±0.256V), enabling compatibility with various sensors.
Low Power Operation
Ultra-low power consumption, suitable for battery-operated devices.
Internal Voltage Reference and Oscillator
Ensures reliable, stable measurements without the need for external components.
 
Applications:
High-accuracy sensor reading (temperature, light, pressure)
Analog signal measurement with Arduino and ESP boards
Differential voltage measurements
Battery monitoring and instrumentation
Robotics, automation, and IoT devices
Industrial process control systems
 
Package Includes:
1 × ADS1115 ADC Module (with header pins)
 
Specifications:
IC: ADS1115
Resolution: 16-bit
Input Channels: 4 (single-ended) or 2 (differential)
Input Voltage Range: ±6.144V to ±0.256V (via PGA)
Interface: I2C (address selectable via ADDR pin)
Supply Voltage: 2.0V – 5.5V
Data Rate: Programmable up to 860 samples/second
Operating Current: ~150 μA (active), ~1 μA (standby)
 
Dimensions:
Length: 28 mm
Width: 15 mm
Height: 5 mm (including headers)
 
Weight: Approx. 3 grams
 
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