Difference between revisions of "Component: DAC (AD5662) (Analog Output)"
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{{Fcfile|AD5662_Demo.fcfx|AD5662_Demo}} | {{Fcfile|AD5662_Demo.fcfx|AD5662_Demo}} | ||
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==Macro reference== | ==Macro reference== | ||
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| − | | width="90%" style="background-color:#D8C9D8; color:#4B008D;" | ''' | + | | width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Initialise''' |
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| − | | colspan="2" | | + | | colspan="2" | Initialise the SPI bus ready for communications, |
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| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID | | width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID | ||
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| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]] | | width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]] | ||
| − | | width="90%" style="background-color:#D8C9D8; color:#4B008D;" | ''' | + | | width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''OutputDAC''' |
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| + | | colspan="2" | Outputs a value to the DAC, | ||
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| − | | | + | | width="10%" align="center" | [[File:Fc9-u16-icon.png]] - UINT |
| + | | width="90%" | Output | ||
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| + | | colspan="2" | Range: 0-65535 / 0=0V / 65535=VCC | ||
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| width="90%" style="border-top: 2px solid #000;" | ''Return'' | | width="90%" style="border-top: 2px solid #000;" | ''Return'' | ||
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Latest revision as of 13:09, 7 February 2023
| 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 to download the component source project: FC_Comp_Source_DAC_AD5662.fcfx
Please click here to view the component source code (Beta): 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.
Macro reference
Initialise
|
Initialise |
| Initialise the SPI bus ready for communications, | |
 - VOID
|
Return |
OutputDAC
|
|
OutputDAC |
| Outputs a value to the DAC, | |
 - UINT
|
Output |
| Range: 0-65535 / 0=0V / 65535=VCC | |
| - 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 |
