ADC Click Board™

Product Code: MIKROE-922

The ADC Click Board™ is based on the MCP3204 12-bit Analog-to-Digital converter. The Click Board™ is designed to run on 3.3V by default. Place PWR SEL SMD jumper to 5V position if used with 5V systems. It communicates with the target microcontroller over SPI interface. MCP3204 FEATURES MCP3204 Analog-to-Digital converter features 25k samples/second, four input channels and low power consumption (500nA typical standby, 2µA max). READING ANALOG INPUTS Four analogue input screw terminals exist for each of the supported A/D channels. We added two more terminals for GND reference. Each analogue input voltage is converted to an appropriate 12-bit digital value, which can be read using an industry-standard SPI communication interface. SPECIFICATIONS Type ADC Applications The ADC Click Board™ can be used in applications such as data acquisition, instrumentation, measurement, etc. On-board modules Analog-to-Digital Converter (ADC) MCP3204 Key Features 12-bit resolution of Analog-to-Digital conversion Interface SPI Compatibility mikroBUS Click board size M (42.9 x 25.4 mm) Input Voltage 3.3V or 5V PINOUT DIAGRAM This table shows how the pinout of the ADC Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes Pin Pin Notes NC 1 AN PWM 16 NC NC 2 RST INT 15 NC SPI Chip select CS 3 CS TX 14 NC SPI clock SCK 4 SCK RX 13 NC Serial data output SDO 5 MISO SCL 12 NC Serial data input SDI 6 MOSI SDA 11 NC Power supply +3.3V 7 3.3V 5V 10 +5V Power supply Ground GND 8 GND GND 9 GND Ground JUMPERS AND SETTINGS Designator Name Default Position Default Option Description JP1 PWR SEL Left 3V3 Power Supply Voltage Selection 3V3/5V, left position 3V3, right position 5V JP2 Reference VCC 4.096V Reference voltage selection There are two zero-ohm resistors (SMD jumpers): PWR SEL is used to determine whether a 5V or 3.3V power supply is used, and REFERENCE to select either VCC or 4.096V as the voltage reference.