ADS1115 ADS1015 16-Bit ADC Module I2C 4-Channel Programmable

ADS1115 / ADS1015 16-Bit ADC Module – I2C, 4-Channel, Programmable Gain

Take your microcontroller projects to the next level with the ADS1115 / ADS1015 16-Bit Analog-to-Digital Converter (ADC) Module. Featuring a 4-channel input, I2C interface, and programmable gain amplifier (PGA), this compact SMD module delivers precise, high-resolution analog readings — making it an essential component for Arduino, Raspberry Pi, and other embedded systems projects.

Key Features

• High Resolution: ADS1115 offers 16-bit resolution; ADS1015 offers 12-bit resolution — choose the variant that fits your project requirements.
• 4 Single-Ended or 2 Differential Inputs: Flexible channel configuration for multi-sensor data acquisition setups.
• I2C Interface: Simple two-wire communication compatible with virtually all popular microcontroller platforms.
• Programmable Gain Amplifier (PGA): Adjustable gain settings allow you to maximize measurement accuracy across a wide range of input voltages.
• Wide Supply Voltage: Operates at 3.3V or 5V — fully compatible with both 3.3V and 5V microcontroller systems.
• Wide Operating Temperature Range: Rated from -40°C to +85°C, suitable for demanding environments.
• Compact SMD Package: Small footprint for easy integration into breadboards, custom PCBs, and enclosures.
• Customizable: Available in both ADS1015 and ADS1115 variants to suit your resolution and speed needs.

Specifications

Compatible With

• Arduino (Uno, Mega, Nano, and more)
• Raspberry Pi (all models)
• ESP8266 / ESP32
• STM32 and other I2C-capable microcontrollers

Ideal Applications

• Sensor data acquisition (temperature, pressure, light, etc.)
• Battery voltage monitoring
• Data logging systems
• Robotics and automation projects
• Educational electronics and prototyping

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Frequently Asked Questions

Q: What is the difference between the ADS1015 and ADS1115 ADC modules?

A: The ADS1015 is a 12-bit ADC with a faster data rate (up to 3300 samples per second), making it ideal for applications where speed is prioritized. The ADS1115 is a 16-bit ADC offering significantly higher resolution, making it better suited for precise measurements such as sensor readings that require fine detail. Both share the same I2C interface and 4-channel input configuration.

Q: Is this ADC module compatible with Arduino and Raspberry Pi?

A: Yes! The ADS1115/ADS1015 module uses the standard I2C communication protocol and operates on 3.3V or 5V, making it fully compatible with Arduino boards, Raspberry Pi, ESP8266/ESP32, and most other popular microcontroller and single-board computer platforms. Libraries are widely available for easy integration.

Q: What is the programmable gain amplifier (PGA) used for on this module?

A: The onboard programmable gain amplifier (PGA) allows you to adjust the input voltage range for the ADC. By selecting the appropriate gain setting, you can measure very small voltages accurately or accommodate larger voltage swings — giving you greater flexibility and measurement precision across different sensor types and signal levels.

Q: How many devices can I connect via I2C on the same bus?

A: The ADS1115/ADS1015 supports multiple I2C address configurations (by connecting the ADDR pin to GND, VDD, SDA, or SCL), allowing up to 4 modules to operate simultaneously on the same I2C bus — ideal for projects requiring many analog input channels.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.