ADS1115 ADC Module - 16-bit, 4-channel, I2C, with PGA
This goes with it
Pay in 30 days
Pay in 30 days
Description
Product overview
- 16-bit analog-to-digital converter for four independent inputs
- Measurement range from 0.256 V to 6.144 V with programmable gain
- I2C bus interface; up to four modules can be connected to one controller
- Sampling rate of up to 860 Hz, with low power consumption and a quiescent current below 150 µA
- Operating voltage from 2 V to 5.5 V, ready for direct use with 3.3 V and 5 V systems
Product description
This 16-bit analog-to-digital converter digitizes slowly changing measurements such as temperature, humidity, or light levels. The programmable gain adapts the measurement accuracy to the respective signal level without having to change the input voltage range. This keeps the measured value at a stable level and avoids wasting resolution bits due to signals that are too small.
The I2C interface connects the module to a microcontroller, saving several connections. Multiple modules can operate on the same I2C bus if they are assigned different addresses. Power consumption remains low enough for battery-powered applications.
The module measures environmental parameters for data loggers and sensor networks, captures analog sensors on robots or measuring stations, and evaluates output voltages from measurement amplifiers. In a weather station, for example, a light sensor, soil moisture sensor, and external temperature probes can be operated alongside one another on the four channels.
Operation requires a microcontroller or single-board computer with an I2C interface and the corresponding software library. The power supply must provide at least 100 mA at 3.3 V or 5 V. The measurement range from below 300 mV to above 6 V should match the sensor output voltage; for smaller signals, the internal gain supports amplification by up to a factor of 16.
Safety information
This module is intended exclusively for building prototypes and for testing and development purposes. It must not be connected to high-voltage circuits or household power networks. Operating with measurement signals above 5.5 V will destroy the module; if in doubt, consult a qualified electrician before commissioning.
Scope of delivery
- 1x ADC module ADS1115, 16-bit, I2C, 4-channel, with PGA