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| 1.0 (Release)
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| Analog Output
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==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: [https://www.flowcode.co.uk/wiki/componentsource/FC_Comp_Source_DAC_AD5662.fcfx FC_Comp_Source_DAC_AD5662.fcfx]


==[[File:Component Icon 3d87ffe9_97c1_4013_a2cd_82c24d0ccb48.png|Image]] DAC (AD5662) component==
Please click here to view the component source code (Beta): [https://www.flowcode.co.uk/FlowchartView/?wfile=componentsource/FC_Comp_Source_DAC_AD5662.fcfx FC_Comp_Source_DAC_AD5662.fcfx]
16-bit external DAC connected to the microcontroller using SPI.


==Detailed description==
==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:


[[File:AD5662 Pin Reference.png]]


==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.


{{Fcfile|AD5662_Demo.fcfx|AD5662_Demo}}
==Circuit Diagram==
[[File:AD5662 Circuit Diagram.png]]
==Downloadable macro reference==


===<span style="font-weight: normal;"><u><tt>OutputDAC</tt></u></span>===
Outputs a value to the DAC,


'''Parameters'''


:[[Variable Types|UINT]] ''Output''
::Range: 0-65535 / 0=0V / 65535=VCC




'''Return value'''


:''This call does not return a value''




===<span style="font-weight: normal;"><u><tt>Initialise</tt></u></span>===
Initialise the SPI bus ready for communications,


'''Parameters'''


:''This macro has no parameters''




'''Return value'''


:''This call does not return a value''






==Simulation macro reference==


''This component does not contain any simulation macros''
 
===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:
 
[[File:AD5662 Pin Reference.png]]
 
===Circuit Diagram===
[[File:AD5662 Circuit Diagram.png]]
 
==Examples==
 
 
 
 
 
 
 
 
 




==Property reference==
<span style="font-weight: normal;"><u>Channel</u></span>


This property is of type ''Fixed list of ints'' and can be referenced with the variable name ''cal_spi1::CHANNEL''.


SPI Channel selector


<span style="font-weight: normal;"><u>Prescale</u></span>


This property is of type ''Fixed list of ints'' and can be referenced with the variable name ''cal_spi1::PR_SCALE''.


Prescale option selector


<span style="font-weight: normal;"><u>MOSI</u></span>


This property is of type ''Single digital pin'' and can be referenced with the variable name ''cal_spi1::MOSI''.


SPI Data Out Pin SDO - Also Known as Master Out Slave In (MOSI) when used in Master mode.


<span style="font-weight: normal;"><u>MISO</u></span>


This property is of type ''Single digital pin'' and can be referenced with the variable name ''cal_spi1::MISO''.


SPI Data In Pin SDI - Also Known as Master In Slave Out (MISO) when used in Master mode.


<span style="font-weight: normal;"><u>CLK</u></span>


This property is of type ''Single digital pin'' and can be referenced with the variable name ''cal_spi1::CLK''.


SPI Clock Pin CLK - The Clock signal is driven by the SPI master.


<span style="font-weight: normal;"><u>CS / SS</u></span>


This property is of type ''Single digital pin'' and can be referenced with the variable name ''cal_spi1::SS''.
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.


Chip Select / Slave Select Pin
{{Fcfile|AD5662_Demo.fcfx|AD5662_Demo}}


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.


<span style="font-weight: normal;"><u>Simulate Comms</u></span>


This property is of type ''True or false'' and can be referenced with the variable name ''SimulateComms''.


''<span style="color:red;">No additional information</span>''






<span style="font-weight: normal;"><u>Console Data</u></span>


This property is of type ''True or false'' and can be referenced with the variable name ''cal_spi1::ConsoleData''.


Selects if the console data is automatically generated or not


<span style="font-weight: normal;"><u>Scope Traces</u></span>
==Macro reference==


This property is of type ''True or false'' and can be referenced with the variable name ''cal_spi1::ScopeTraces''.
===Initialise===
{| class="mtx-class-macrotable wikitable"
|-
| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-comp-macro.png]]
| width="90%" class="mtx-class-macrohead" | '''Initialise'''
|-
| colspan="2" | Initialise the SPI bus ready for communications,&nbsp;
|-
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}


Selects if the scope traces are automatically generated or not


<span style="font-weight: normal;"><u>Injector</u></span>
===OutputDAC===
{| class="mtx-class-macrotable wikitable"
|-
| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-comp-macro.png]]
| width="90%" class="mtx-class-macrohead" | '''OutputDAC'''
|-
| colspan="2" | Outputs a value to the DAC,  &nbsp;
|-
|-
| width="10%" align="center" | [[File:Fc9-u16-icon.png]] - UINT
| width="90%" | Output
|-
| colspan="2" | Range: 0-65535 / 0=0V / 65535=VCC&nbsp;
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}
 


This property is of type ''Fixed list of ints'' and can be referenced with the variable name ''cal_spi1::Injector''.
==Property reference==


''<span style="color:red;">No additional information</span>''
{| class="mtx-class-macrotable wikitable"
|-
| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-prop-icon.png]]
| width="90%" class="mtx-class-macrohead" | '''Properties'''
|-
|-
| width="10%" align="center" class="mtx-class-propfolder" | [[File:Fc9-conn-icon.png]]
| width="90%" class="mtx-class-propfolder" | SPI Properties
|-
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | Channel
|-
| colspan="2" | SPI Channel selector&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | Prescale
|-
| colspan="2" | Prescale option selector&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-type-5-icon.png]]
| width="90%" | MOSI
|-
| colspan="2" | SPI Data Out Pin SDO - Also Known as Master Out Slave In (MOSI) when used in Master mode.&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-type-5-icon.png]]
| width="90%" | MISO
|-
| colspan="2" | SPI Data In Pin SDI - Also Known as Master In Slave Out (MISO) when used in Master mode.&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-type-5-icon.png]]
| width="90%" | CLK
|-
| colspan="2" | SPI Clock Pin CLK - The Clock signal is driven by the SPI master.&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-type-5-icon.png]]
| width="90%" | CS / SS
|-
| 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. &nbsp;
|-
| width="10%" align="center" class="mtx-class-propfolder" | [[File:Fc9-conn-icon.png]]
| width="90%" class="mtx-class-propfolder" | Simulation
|-
|-
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
| width="90%" | Data Recorder Trace
|-
| colspan="2" | &nbsp;
|-
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
| width="90%" | Simulate Comms
|-
| colspan="2" | &nbsp;
|}

Latest revision as of 14:37, 13 July 2026

Author Matrix TSL
Version 1.0
Category Analog Output


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.

AD5662_Demo






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
 
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