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==Detailed description==
==Detailed description==




Line 84: Line 88:




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}}


==Macro reference==


{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''OutputDAC'''
|-
| colspan="2" | Outputs a value to the DAC,   
|-
|-
| width="10%" align="center" | [[File:Fc9-u16-icon.png]] - UINT
| width="90%" | Output
|-
| colspan="2" | Range: 0-65535 / 0=0V / 65535=VCC 
|-
| 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 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.


{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
{{Fcfile|AD5662_Demo.fcfx|AD5662_Demo}}
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Initialise'''
|-
| colspan="2" | Initialise the SPI bus ready for communications, 
|-
|-
| 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''
|}








==Property reference==


{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-prop-icon.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Properties'''
|-
|-
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | SPI Properties
|-
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | Channel
|-
| colspan="2" | SPI Channel selector 
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | Prescale
|-
| colspan="2" | Prescale option selector 
|-
| 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. 
|-
| 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. 
|-
| 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. 
|-
| 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.  
|-
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Simulation
|-
|-
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
| width="90%" | Data Recorder Trace
|-
| colspan="2" |  
|-
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
| width="90%" | Simulate Comms
|-
| colspan="2" |  
|}==Macro reference==
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''OutputDAC'''
|-
| colspan="2" | Outputs a value to the DAC,   
|-
|-
| width="10%" align="center" | [[File:Fc9-u16-icon.png]] - UINT
| width="90%" | Output
|-
| colspan="2" | Range: 0-65535 / 0=0V / 65535=VCC 
|-
| 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''
|}


{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Initialise'''
|-
| colspan="2" | Initialise the SPI bus ready for communications, 
|-
|-
| 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''
|}








==Property reference==


{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
==Macro reference==
|-
| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-prop-icon.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Properties'''
|-
|-
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | SPI Properties
|-
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | Channel
|-
| colspan="2" | SPI Channel selector 
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | Prescale
|-
| colspan="2" | Prescale option selector 
|-
| 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. 
|-
| 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. 
|-
| 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. 
|-
| 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.  
|-
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Simulation
|-
|-
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
| width="90%" | Data Recorder Trace
|-
| colspan="2" |  
|-
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
| width="90%" | Simulate Comms
|-
| colspan="2" |  
|}==Macro reference==
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''OutputDAC'''
|-
| colspan="2" | Outputs a value to the DAC,   
|-
|-
| width="10%" align="center" | [[File:Fc9-u16-icon.png]] - UINT
| width="90%" | Output
|-
| colspan="2" | Range: 0-65535 / 0=0V / 65535=VCC 
|-
| 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''
|}


 
===Initialise===
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
{| class="mtx-class-macrotable wikitable"
|-
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Initialise'''
| width="90%" class="mtx-class-macrohead" | '''Initialise'''
|-
|-
| colspan="2" | Initialise the SPI bus ready for communications, 
| colspan="2" | Initialise the SPI bus ready for communications, 
Line 302: Line 123:




 
===OutputDAC===
 
{| class="mtx-class-macrotable wikitable"
==Property reference==
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
|-
| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-prop-icon.png]]
| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Properties'''
| width="90%" class="mtx-class-macrohead" | '''OutputDAC'''
|-
|-
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | SPI Properties
|-
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | Channel
|-
| colspan="2" | SPI Channel selector 
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | Prescale
|-
| colspan="2" | Prescale option selector 
|-
| 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. 
|-
| 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. 
|-
| 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. 
|-
| 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.  
|-
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Simulation
|-
|-
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
| width="90%" | Data Recorder Trace
|-
| colspan="2" |  
|-
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
| width="90%" | Simulate Comms
|-
| colspan="2" |  
|}==Macro reference==
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''OutputDAC'''
|-
|-
| colspan="2" | Outputs a value to the DAC,   
| colspan="2" | Outputs a value to the DAC,   
Line 377: Line 140:
| width="90%" style="border-top: 2px solid #000;" | ''Return''
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}
|}
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Initialise'''
|-
| colspan="2" | Initialise the SPI bus ready for communications, 
|-
|-
| 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''
|}




==Property reference==
==Property reference==


{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
{| class="mtx-class-macrotable wikitable"
|-
|-
| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-prop-icon.png]]
| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-prop-icon.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Properties'''  
| width="90%" class="mtx-class-macrohead" | '''Properties'''  
|-
|-
|-
|-
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
| width="10%" align="center" class="mtx-class-propfolder" | [[File:Fc9-conn-icon.png]]
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | SPI Properties
| width="90%" class="mtx-class-propfolder" | SPI Properties
|-
|-
|-
|-
Line 436: Line 184:
| 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.  
|-
|-
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
| width="10%" align="center" class="mtx-class-propfolder" | [[File:Fc9-conn-icon.png]]
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Simulation
| width="90%" class="mtx-class-propfolder" | Simulation
|-
|-
|-
|-

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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