ADAC click

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  • MIKROE-2690
  • MIKROE-2690
ADAC click  is an 8-channel 12-bit ADC, DAC and GPIO. It carries the  AD5593R... more
Product information "ADAC click"

ADAC click is an 8-channel 12-bit ADC, DAC and GPIO. It carries the AD5593R configurable ADC/DAC. The click is designed to run on either 3.3V or 5V power supply. ADAC click communicates with the target microcontroller over I2C interface, with additional functionality provided by the RST pin on the mikroBUS™ line.

How it works

Every channel can be set individually as ADC, DAC, or GPIO. The 12-bit conversion values are readable through I2C. 

For resetting the IC, use the Reset pin (RST).

AD5593R IC features

The AD5593R has eight input/output (I/O) pins, which can be independently configured as digital-to-analog converter (DAC) outputs, analog-to-digital converter (ADC) inputs, digital outputs, or digital inputs. When an I/O pin is configured as an analog output, it is driven by a 12-bit DAC. The output range of the DAC is 0 V to VREF or 0 V to 2×V REF.

When an I/O pin is configured as an analog input, it is connected to a 12-bit ADC via an analog multiplexer. The input range of the ADC is 0 V to VREF or 0 V to 2 × VREF. The I/O pins can also be configured to be general-purpose, digital input or output (GPIO) pins.

Specifications

Type ADC
Applications control and monitoring, measurement, etc.
On-board modules AD5593R 8-Channel, 12-Bit, Configurable ADC/DAC
Key Features 8 12-bit DAC channels, 8 12-bit ADC channels
Interface GPIO,I2C
Peripherals include Screw terminals
Input Voltage 3.3V or 5V
Compatibility mikroBUS
Click board size M (42.9 x 25.4 mm)

Key features

  • AD5593R configurable ADC/DAC
    • 8 12-bit DAC channels
    • 8 12-bit ADC channels
    • 8 general-purpose I/O pins
  • I2C interface
  • 3.3V or 5V power supply

Pinout diagram

This table shows how the pinout on ADAC 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  
Active low IC reset RST 2 RST INT 15 NC  
  NC 3 CS TX 14 NC  
  NC 4 SCK RX 13 NC  
  NC 5 MISO SCL 12 SCL I2C serial clock
  NC 6 MOSI SDA 11 SDA I2C serial data
Power supply +3.3V 7 3.3V 5V 10 +5V Power supply
Ground GND 8 GND GND 9 GND Ground

Additional pins

NameI/ODescription
IO0   Multipurpouse IO pin(ADC,DAC,GPIO)channel0
IO1   Multipurpouse IO pin(ADC,DAC,GPIO)channel1
IO2   Multipurpouse IO pin(ADC,DAC,GPIO)channel2
IO3   Multipurpouse IO pin(ADC,DAC,GPIO)channel3
IO4   Multipurpouse IO pin(ADC,DAC,GPIO)channel4
IO5   Multipurpouse IO pin(ADC,DAC,GPIO)channel5
IO6   Multipurpouse IO pin(ADC,DAC,GPIO)channel6
IO7   Multipurpouse IO pin(ADC,DAC,GPIO)channel7
VREF OPTIONAL Used as input for connecting external VREF or output 2.5V from internal
GND OPTIONAL Used for external connection to GND if VREF input is used

Jumpers and settings

DesignatorNameDefault PositionDefault OptionDescription
ADD SEL Address bit 0 3V3 I2C slave address selection, set LSB of slave address 0010001x left pos, 0010000x right pos, (x=R/W)
VCC SEL Power supply   3V3 Supply Voltage Selection 3V3/5V, left position 3v3, right position 5v
LOG SEL Interface power supply   3V3 Logic Level Voltage Selection 3V3/5V, left position 3v3, right position 5v

Programming

Code examples for ADAC click, written for MikroElektronika hardware and compilers are available on Libstock.

Code snippet

The following code snippet demonstrates the use of ADAC click library functions. It will first set a pin as an analog output, showing DAC function, and will then set a different pin as an analog input, showing ADC operation.

01 UART1_Write_Text ("rnrnStarting DAC Operation...");
02         Delay_ms (1000);
03         //Sets the IO3 pin as DAC
04         ADAC_setConfiguration (_ADAC_DAC_CONFIG, _ADAC_NULL, _ADAC_IO3);
05         //Rises the DAC output on IO3 from 0 to VREF
06         for (i = 0; i < 0xFFF; i+=4)
07         {
08             ADAC_writeDAC (_ADAC_DAC_WRITE | _ADAC_PB_PIN3, i/0x100, i%0x100);
09             Delay_ms (10);
10         }
11         UART1_Write_Text ("rnDAC Operation finishedrn");
12         Delay_ms (1000);
13
14
15        UART1_Write_Text ("rnStarting ADC Operation...");
16         Delay_ms (1000);
17         //Sets the IO4 pin as ADC
18         ADAC_setConfiguration (_ADAC_ADC_CONFIG, _ADAC_NULL, _ADAC_IO4);
19         //Sets the ADC sequence repetition to enabled, and adds IO4 to sequence
20         ADAC_setConfiguration (_ADAC_ADC_SEQUENCE, _ADAC_SEQUENCE_ON, _ADAC_IO4);
21         //Reads the ADC input, and writes it to UART1
22         for (i = 0; i < 8; i++)
23         {
24             ADCValue = ADAC_readADC ( _ADAC_ADC_READ, &channel );
25             ShortToStr (channel, uartText);
26             UART1_Write_Text ("rnRead value from channel");
27             UART1_Write_Text (uartText);
28
29
30            IntToStr (ADCValue, uartText);
31             UART1_Write_Text (": ");
32             UART1_Write_Text (uartText);
33             Delay_ms (2000);
34         }
35
36        UART1_Write_Text ("rnADC Operation finished");
37         Delay_ms (1000);

 

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