ADS1115 Arduino 4-Channel 16-Bit I2C ADC Module

Name: ADS1115 Arduino 4-Channel 16-Bit I2C ADC Module
Brand: satkit
SKU: G000101--ADS1115-conversor
Price: 4.92 EUR
Availability: InStock

Brand: satkit

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4.92€

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The ADS1115 Arduino 4-channel ADC module is an external analogue-to-digital converter that connects easily to microcontrollers such as Arduino via the I2C interface. This module offers four analogue input channels with 16-bit resolution, enabling accurate and reliable measurements for your electronics and automation projects.

This module stands out for its integrated gain amplifier, which improves sensitivity and allows low-voltage signals to be detected more accurately. In addition, the ADS1115 has four selectable addresses via the ADDRESS pin, making it easy to connect multiple modules on the same I2C bus.

Main features:

ADC resolution: 16 bits (15 bits for measurement and 1 bit for sign)
Communication interface: I2C
Available channels: 4 analogue inputs (AN0, AN1, AN2, AN3) or 2 differential inputs
Input voltage: 2.0 to 5.5 V
Input voltage per channel: 0 to VDD
Continuous mode current consumption: approximately 150 µA
Programmable sampling rate: between 8 and 860 samples per second (sps)
Module size: approximately 17 x 28 x 0.1 mm
Pin size: approximately 11 x 25 mm

Typical uses:

Accurate measurement of analogue sensors in Arduino projects
Reading low-voltage signals or signals with negative values
Applications that require high resolution and precision in data acquisition
Small-scale automation and industrial control

Compatibility: Compatible with Arduino boards and other microcontrollers that support I2C communication. Its easy integration allows you to expand analogue input capacity and improve accuracy compared with Arduino's internal ADCs.

Package contents:

1 x ADS1115 Pro ADC Module with 4 channels, 16 bits, I2C interface and gain amplifier

This module is an ideal solution for anyone looking to improve the accuracy of analogue measurements in electronics projects, freeing up the main processor and making it easier to read complex or low-level signals.

16-bit ADC resolution for accurate measurements
I2C interface for easy connection to Arduino
4 analogue channels or 2 differential inputs for multiple inputs
Integrated gain amplifier for weak signals
Input voltage between 2.0 and 5.5 V compatible with Arduino
Adjustable sampling rate between 8 and 860 sps
Low power consumption in continuous mode (150 µA)
Compact size for easy integration into projects

Customer Questions & Answers

What are the dimensions and exact weight of the ADS1115 module included in the package?

The ADS1115 module measures approximately 28 mm long, 17 mm wide and 1 mm thick. The pins protrude by around 11 x 25 mm. Its weight is under 5 grams, taking into account the lack of housing and the lightweight materials typical of printed circuit boards.

What precautions should be taken to avoid damage from overvoltage on the analogue inputs?

The analogue inputs accept a range from 0 to VDD (the maximum supply voltage connected), or as limited by the gain setting. They must never exceed the supply voltage, and negative signals must not be applied either (except in differential mode, according to the datasheet limits). It is recommended to use voltage dividers or signal conditioning if the sensor exceeds this range.

What is the maximum sampling speed and how does it compare with other similar I2C options?

The ADS1115 allows the sampling rate to be set between 8 and 860 samples per second (sps) per channel. This places it above 12-bit I2C ADCs such as the ADS1015, but below SPI solutions that can exceed 1000 sps. If you prioritise accuracy over speed, the ADS1115 is a balanced option for high-resolution measurements at moderate speed.

How do I connect the ADS1115 to Arduino?

The ADS1115 connects to Arduino via the I2C interface using the SDA and SCL pins, plus the ADDRESS pin to select the device address.

What are the advantages of the ADS1115 over Arduino's internal ADC?

The ADS1115 offers higher resolution (16 bits versus 10 bits), greater accuracy and the ability to measure negative signals, making it ideal for applications that require high precision.

How many analogue channels does the ADS1115 module have?

The ADS1115 module has 4 analogue channels that can be used as individual inputs or as 2 differential inputs.

What voltage range can the ADS1115 measure?

The ADS1115 can measure input voltages from 0 up to the supply voltage, which can be between 2.0 and 5.5 V.

Does the module include a gain amplifier?

Yes, the ADS1115 Pro includes a gain amplifier that allows increased sensitivity for low-voltage signals.