Product description
12-bit AD converter module with four channels, manufactured by Electrokit. The module is based on Texas Instruments ADS1015 circuit, which is a compact analogue-to-digital converter. It offers four analogue inputs with 12-bit resolution and communication via I2C (Qwiic). An ideal AD converter for microcontrollers such as Arduino, ESP32 or Raspberry Pi. The module has an integrated programmable gain amplifier (PGA) that allows accurate measurements even at low input signals. It can be configured to measure four signals to ground (single-ended channels) or two differential pairs. Connection is made with Qwiic (two connectors are provided on the board), supplied pin header or soldering wires directly. All connections are easily accessible via a standard 2.54 mm grid, adapted for breadboards and prototype boards. Improved signal quality is achieved by filtering with ferrite beads and decoupling capacitors on analogue feeds (AV+ and AGND). 10 kΩ pull-up resistors are fitted for SDA, SCL, INT and ADR. These can be easily disconnected by cutting off solder bridges on the back of the PCB. Up to four addresses (0x72 - 0x75) are supported via the ADR pin.
Specifications:
- Supply voltage: 2 - 5.5 VDC
- Current consumption: 150 µA
- Resolution: 12 bits
- Sampling rate: 128 - 3300 samples/sec
- Full-scale range (PGA): ±0.256 V to ±6.144 V
- I2C addresses: 0x73 (default), 0x72, 0x74, 0x75
- Dimensions: 25 × 20 mm
- Mounting holes: c-c 20 x 15 mm, ø2.5 mm
Features:
- Four analogue channels via I2C
- Integrated amplifier, comparator and reference voltage
- Easy connection via dual Qwiic connectors
- Breadboard-friendly layout (2.54 mm pitch)
