ADS1115 Analog to Digital Converter ADC 4 channel with Pro Gain Amplifier

The ADS1115 Analog to Digital Converter ADC 4 channel with Pro Gain Amplifier provides 16-bit precision at 860 samples/second over I2C. The chip can be configured as 4 single-ended input channels, or two differential channels. It includes a programmable gain amplifier, up to x16, to help boost up smaller single/differential signals to the full range.

Features:

• Wide supply range: 2.0V to 5.5V
• Low current consumption: Continuous Mode: Only 150µA Single-Shot Mode: Auto Shut-Down
• Programmable data rate: 8SPS to 860SPS
• Internal low-drift voltage reference
• Internal oscillator
• Internal PGA
• I2C interface: Pin-Selectable Addresses
• Four single-ended or two differential inputs
• Programmable comparator

This board/chip uses I2C 7-bit addresses between 0x48-0x4B, selectable with jumpers.

Interfacing:

Interfacing is done via I2C. The address can be changed to one of four options so you can have up to 4 ADS1115’s connected on a single 2-wire I2C bus for 16 single ended inputs.

Downloads:

• ADS1115 Datasheet
• Raspberry Pi Python Library
• Arduino ADS1X15 Library

To get you started, we have example code for both the Raspberry Pi (Pi Python library) and Arduino (ADS1X15 Arduino library). Simply connect GND to ground, VDD to your logic power supply, and SCL/SDA to your microcontroller’s I2C port and run the example code to start reading data.