ADC click

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  • MIKROE-922
  • MIKROE-922
  ADC click  carries the  MCP3204  12-bit Analog-to-Digital converter....more
Product information "ADC click"


ADC click carries the MCP3204 12-bit Analog-to-Digital converter. The click 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 50k samples/second, 4 input channels and low power consumption (500nA typical standby, 2µA max).

Reading Analog inputs

There are four analog input screw terminals for each of the supported A/D channels. We added two more terminals for GND reference. Each analog input voltage is converted to an appropriate 12-bit digital value, which can be read using industry standard SPI communication interface.


Type ADC
Applications 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
Key Benefits Low power consumption (500nA typical standby)
Interface SPI
Input Voltage 3.3V or 5V
Compatibility mikroBUS
Click board size M (42.9 x 25.4 mm)

Pinout diagram

This table shows how the pinout on ADC click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

NotesPinMikrobus logo.pngPinNotes
  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

DesignatorNameDefault PositionDefault OptionDescription
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 5V or 3.3V power supply is used, and REFERENCE to select either VCC or 4.096V as the voltage reference.


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