ADS1115 16 Bit I2C ADC 4 Channel Programmable Gain Amplifier Module

The ADS1115 ADC module converts analog signals into precise digital readings with 16-bit resolution and communicates via a two-wire I²C interface, which requires only two communication lines (SDA and SCL).

It supports up to four single-ended analog inputs or two differential inputs, with a programmable gain amplifier (PGA) offering input ranges from ±0.256V to ±6.144V.

This flexibility makes it ideal for sensors, transducers, or other analog signal sources. The module also features an alert/ready pin for interrupt-driven applications and supports a wide supply voltage range (2.0V to 5.5V), enabling compatibility with 3.3V and 5V logic levels.

• WIDE SUPPLY RANGE: 2.0V to 5.5V
• PROGRAMMABLE DATA RATE: 8SPS to 860SPS
• It has an Internal low-drift voltage reference
• Internal Oscillator.
• Internal PGA.
• I2C INTERFACE : Pin-Selectable Addresses.
• Four single ends Or Two differential inputs.
• Programmable Comparator.
• This board/chip uses I2C 7-bit addresses between 0x48-0x4B, selectable with jumpers
• LOW CURRENT CONSUMPTION: Continuous Mode: Only 150µA Single-Shot Mode: Auto Shut-Down

Applications

• Sensor data acquisition (temperature, pressure, light, etc.)
• Battery monitoring and voltage measurement
• Current and power sensing with shunt resistors
• Industrial process control systems
• Data loggers and instrumentation projects
• Analog signal expansion for microcontrollers
• IoT and embedded systems requiring precise analog inputs