Mikroelektronika MIKROE-2436 Voltmeter Click Board, 0-24Vdc, 12-bit ADC, SPI

Technical description of the product (MIKROE-2436):

The Mikroelektronika MIKROE-2436 Voltmeter Click Board offers a voltage measurement range of 0-24Vdc, featuring a 12-bit ADC and SPI interface, compatible with both 3.3V and 5V. The board\'s design is based on an OpAmp configured as a differential amplifier with a buffered input. Two onboard screw terminals (probe+ and probe-) receive the current, which then flows through a series of four resistors. A voltage, proportional to the input charge, is generated across the last two resistors. This is then sent to the differential amplifier, which further intensifies the difference between the two inputs (+/-). The resulting charge is exactly 33 times lower than the actual measured voltage. It is converted by an onboard 12-bit ADC before being outputted through the mikroBUS™ SPI interface (the firmware in the target board MCU should be set up to multiply the ADC value to get the actual voltage). It is also possible to output the analog value directly through the mikroBUS™ AN pin (useful if the target MCU has a higher resolution ADC). The board can operate with either a 3.3V or a 5V power supply. Type: Measurements. Applications: Measuring DC Voltage from external circuits. On-board modules: MCP3201 12-bit ADC, MCP609 CMOS, MAX6106. Key Features: Measurement range: 0-24Vdc, 12-bit ADC. Key Benefits: Measures both positive and negative charges, possible to measure analog values directly. Interface: Analog, SPI. Input Voltage: 3.3V or 5V. Compatibility: mikroBUS. Click board size: M (42.9 x 25.4 mm).