ADS1115 16 Bit ADC-I2C with Programmable Gain Amplifier

Resolution: The ADS1115 offers a 16-bit resolution, allowing it to provide highly accurate digital representations of analog voltage inputs. This high resolution results in finer granularity when measuring voltage levels compared to lower-resolution ADCs.

Analog Inputs: The ADS1115 typically has four differential analog input channels (AIN0 to AIN3) or two single-ended channels (AIN0 and AIN1). These channels allow you to connect external analog voltage sources for conversion.

Programmable Gain Amplifier (PGA): The integrated PGA enables you to adjust the gain of the ADC. This means you can amplify or attenuate the input signals to accommodate a wider range of voltage levels. The available gain settings are 2/3x, 1x, 2x, 4x, 8x, and 16x.

Conversion Speed: The ADS1115 provides several programmable data rates, ranging from 8 to 860 samples per second (SPS). You can choose the data rate that best suits your application's requirements for both accuracy and speed.

I2C Interface: Communication with the ADS1115 is achieved through the I2C interface, which allows it to be easily connected to microcontrollers and other digital devices.

Alert Pin: The ALERT/RDY pin can be used to signal when conversion data is ready or when a programmed threshold is exceeded. This feature is handy for triggering actions based on specific analog input conditions.

Voltage Reference: The ADS1115 can operate using either an internal reference voltage or an external reference voltage. The choice of reference voltage affects the range of voltages that can be accurately measured.

Applications: The ADS1115 is commonly used in applications that require precise measurement of analog signals, such as industrial sensors, data acquisition systems, environmental monitoring, and more.

Package: It is available in various package types, including surface-mount and through-hole options.