I2C ADS1115 16-Bit ADC 4-channel Module with Programmable Gain Amplifier

Product Description

The ADS1115 Breakout Board is engineered for high-fidelity data acquisition. It features an internal low-drift voltage reference and an oscillator, ensuring stable readings across a wide temperature range of -40°C to +125°C. The module is highly flexible, supporting four single-ended inputs or two differential pairs, which is particularly useful for measuring bridge-based sensors like load cells. Its ultra-low power consumption and automatic shut-down mode make it an excellent choice for battery-operated IoT devices.

Key Features

• Superior Resolution: Offers 65,536 levels of measurement, providing 16 times more detail than a standard 12-bit ADC.

• Programmable Gain (PGA): Allows you to fine-tune the input range. For example, you can set the range to ±0.256V to measure millivolt signals with a resolution of roughly 7.8 microvolts.

• Address Selectability: By connecting the ADDR pin to GND, VDD, SDA, or SCL, you can change the I2C address, allowing up to four modules (16 channels) on a single bus.

• Integrated Comparator: Includes a programmable digital comparator that can trigger the ALRT pin when a signal exceeds a predefined threshold, perfect for overvoltage protection.

• Noise Reduction: The breakout board typically includes ferrites to separate analog and digital ground planes, keeping high-frequency noise out of your measurements.

Technical Details

• Dimensions: Approx. 28mm x 17mm.

• Communication: Standard, Fast, and High-Speed I2C modes.

• Package: Breakout board with 0.1-inch (2.54mm) pin headers.