ADS1115 is an analog-to-digital converter module with a 16-bit resolution. - ADS1115 Module with Programmable Gain Amplifier -. I2C interface. 860 samples/second over I2C. 16-bit ADC. The module also has a PGA(Programmable Gain Amplifier) feature which allows us to multiply the very small analog signal values by a variable and obtain a higher signal value.
eBay