Difference between revisions of "Component: DAC (AD5662) (Analog Output)"
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16-bit external DAC connected to the microcontroller using SPI. | 16-bit external DAC connected to the microcontroller using SPI. | ||
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| − | + | Please click here for the component source code: [https://www.flowcode.co.uk/wikicopy/componentsource/FC_Comp_Source_DAC_AD5662.fcfx FC_Comp_Source_DAC_AD5662.fcfx] | |
==Detailed description== | ==Detailed description== | ||
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==Examples== | ==Examples== | ||
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| colspan="2" | Chip Select / Slave Select Pin Master Mode: General purpose output pin used to select the remote SPI device. Slave Mode: Hardware chip select pin input used to select the SPI device. | | colspan="2" | Chip Select / Slave Select Pin Master Mode: General purpose output pin used to select the remote SPI device. Slave Mode: Hardware chip select pin input used to select the SPI device. | ||
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Revision as of 17:45, 9 November 2022
| Author | Matrix TSL |
| Version | 1.0 |
| Category | Analog Output |
Contents
DAC (AD5662) component
16-bit external DAC connected to the microcontroller using SPI.
Component Source Code
Please click here for the component source code: FC_Comp_Source_DAC_AD5662.fcfx
Detailed description
Overview
The AD5662 is a 3V/5V general purpose SPI compatible, high-resolution digital to analog converter (DAC), capable of generating a rail-to-rail voltage output.
With 16-Bit resolution, the AD5662 is capable of finely tuning the voltage output across 65,536 steps, with an individual step voltage of 5/65536 = 0.0000763 volts DC.
The AD5662 requires an external reference voltage to set the output range of the DAC.
Pin reference from the datasheet:
Circuit Diagram
Examples
This example reads a potentiometer that is connected across the supply voltage. The output from the DAC should mimic the voltage that's across ADC pin & GND.
Downloadable macro reference
|
OutputDAC |
| Outputs a value to the DAC, | |
 - UINT
|
Output |
| Range: 0-65535 / 0=0V / 65535=VCC | |
 - VOID
|
Return |
|
|
Initialise |
| Initialise the SPI bus ready for communications, | |
| - VOID
|
Return |
Property reference
|
Properties |
|
SPI Properties |
|
Channel |
| SPI Channel selector | |
|
|
Prescale |
| Prescale option selector | |
|
MOSI |
| SPI Data Out Pin SDO - Also Known as Master Out Slave In (MOSI) when used in Master mode. | |
|
|
MISO |
| SPI Data In Pin SDI - Also Known as Master In Slave Out (MISO) when used in Master mode. | |
|
|
CLK |
| SPI Clock Pin CLK - The Clock signal is driven by the SPI master. | |
|
|
CS / SS |
| Chip Select / Slave Select Pin Master Mode: General purpose output pin used to select the remote SPI device. Slave Mode: Hardware chip select pin input used to select the SPI device. | |
|
|
Simulation |
|
Data Recorder Trace |
|
|
Simulate Comms |
