Mikroelektronika d.o.o.
ADC Click Board
ADC Click Board
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Overview
The ADC Click Board™ carries 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.
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.
Frequently Asked Questions
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