OEM GY ADS1115 16-bit ADC 4 channel with amplifier

For microcontrollers without an analog-to-digital converter or if you desire a higher precision ADC, the ADS1115 offers 16-bit precision with 860 samples per second via I2C. The chip can be configured as four single-ended input channels or two differential channels. As an added bonus, it even includes an amplifier with programmable gain of up to x16 to amplify smaller single or differential signals to the full range.

We like this ADC because it can operate from 2V to 5V, measures a wide range of signals, and is very easy to use. It is a great 16-bit converter for general purposes.

The chip is quite small, allowing it to be mounted on a breadboard with ferrites to silence the AVDD and AGND. Connection is made via I2C. The address can be changed to one of four options, enabling you to connect up to four ADS1115s to a single 2-wire I2C bus for 16 single-ended inputs.

Simply connect GND to ground, VDD to your logic power supply, and SCL/SDA to the I2C port of your microcontroller, then run the example code to start reading data.

• Wide supply range: 2.0V to 5.5V
• Low power consumption: Continuous mode: only 150µA, Single-shot mode: auto shutdown
• Programmable data rate: 8 SPS to 860 SPS
• Internal reference for low-drift voltage
• Internal oscillator
• Internal PGA
• I2C interface: pin-selectable addresses
• Four single-ended or two differential inputs
• Programmable comparator
• Size: 25.5 mm x 9 mm.