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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==Component Pack==
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==Component Source Code==
  
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COMMSA
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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]
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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]
  
 
==Detailed description==
 
==Detailed description==
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==Examples==
 
==Examples==
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{{Fcfile|AD5662_Demo.fcfx|AD5662_Demo}}
 
{{Fcfile|AD5662_Demo.fcfx|AD5662_Demo}}
  
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==Downloadable macro reference==
 
  
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==Macro reference==
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===Initialise===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
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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]]
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''OutputDAC'''
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Initialise'''
 
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| colspan="2" | Outputs a value to the DAC,  
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| colspan="2" | Initialise the SPI bus ready for communications, 
 
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| width="10%" align="center" | [[File:Fc9-u16-icon.png]] - UINT
 
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| width="90%" | Output
 
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| colspan="2" | Range: 0-65535 / 0=0V / 65535=VCC 
 
 
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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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===OutputDAC===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
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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]]
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Initialise'''
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''OutputDAC'''
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|-
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| colspan="2" | Outputs a value to the DAC,   
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| colspan="2" | Initialise the SPI bus ready for communications, 
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| width="10%" align="center" | [[File:Fc9-u16-icon.png]] - UINT
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| width="90%" | Output
 
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| colspan="2" | Range: 0-65535 / 0=0V / 65535=VCC 
 
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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
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
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|}
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| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-prop-icon.png]]
 
| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-prop-icon.png]]
 
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Properties'''  
 
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Properties'''  
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| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
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| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | SPI Properties
 
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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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| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
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| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
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| width="90%" | Console Data
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| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Simulation
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| colspan="2" | Selects if the console data is automatically generated or not 
 
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| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
 
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| width="90%" | Scope Traces
 
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| colspan="2" | Selects if the scope traces are automatically generated or not 
 
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| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
 
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| width="90%" | API
 
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| colspan="2" |  
 
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| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-conn-icon.png]]
 
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Connections'''
 
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| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-conn-icon.png]]
 
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Simulations'''
 
 
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Latest revision as of 13:09, 7 February 2023

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:

AD5662 Pin Reference.png

Circuit Diagram

AD5662 Circuit Diagram.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.

FC6 Icon.png AD5662_Demo






Macro reference

Initialise

Fc9-comp-macro.png Initialise
Initialise the SPI bus ready for communications, 
Fc9-void-icon.png - VOID Return


OutputDAC

Fc9-comp-macro.png OutputDAC
Outputs a value to the DAC,  
Fc9-u16-icon.png - UINT Output
Range: 0-65535 / 0=0V / 65535=VCC 
Fc9-void-icon.png - VOID Return


Property reference

Fc9-prop-icon.png Properties
Fc9-conn-icon.png SPI Properties
Fc9-type-16-icon.png Channel
SPI Channel selector 
Fc9-type-16-icon.png Prescale
Prescale option selector 
Fc9-type-5-icon.png MOSI
SPI Data Out Pin SDO - Also Known as Master Out Slave In (MOSI) when used in Master mode. 
Fc9-type-5-icon.png MISO
SPI Data In Pin SDI - Also Known as Master In Slave Out (MISO) when used in Master mode. 
Fc9-type-5-icon.png CLK
SPI Clock Pin CLK - The Clock signal is driven by the SPI master. 
Fc9-type-5-icon.png 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.  
Fc9-conn-icon.png Simulation
Fc9-type-7-icon.png Data Recorder Trace
 
Fc9-type-7-icon.png Simulate Comms
 
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