Component: DAC (MCP4725) (MCP4725) (Analog Output): Difference between revisions
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| colspan="2" | Specifies the Resolution per digital bit in terms of Voltage. | | colspan="2" | Specifies the Resolution per digital bit in terms of Voltage. | ||
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| width="90%" | | width="90%" class="mtx-class-propfolder" | I2C Connections | ||
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| colspan="2" | Baud rate to be used | | colspan="2" | Baud rate to be used | ||
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| width="90%" | | width="90%" class="mtx-class-propfolder" | Simulation | ||
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Latest revision as of 14:37, 13 July 2026
| Author | Matrix TSL |
| Version | 1.0 |
| Category | Analog Output |
DAC (MCP4725) component
Component to drive a 12-bit digital to analogue converter (DAC) IC from Microchip via an I2C interface.
Detailed description
No detailed description exists yet for this component
Examples
No additional examples
Macro reference
Disable
|
Disable |
| Disables the DAC output. | |
 - VOID
|
Return |
Enable
|
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Enable |
| Enables the DAC Output. | |
| - VOID
|
Return |
Initialise
|
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Initialise |
| Configures the I2C peripheral ready for communications and initialises the internal variables. DAC needs to be enabled before any output voltage can be generated. | |
| - VOID
|
Return |
SetOutput
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SetOutput |
| Sets the output voltage of the DAC 12-Bit: Range 0-4095 | |
 - UINT
|
DAC_Value |
| The value to output to the DAC | |
| - VOID
|
Return |
Property reference
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Properties |
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Disabled Pull Down |
| Sets the pull down resistance when the IC's DAC output is disabled. | |
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Vref Voltage |
| Reference Voltage, Used to calculate the Voltage resolution. | |
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Steps |
| Number of discrete output states available from the DAC. | |
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Control Bits |
| Number of digital control bits | |
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Resolution |
| Maximum output resolution based on number of control bits. | |
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Voltage Resolution |
| Specifies the Resolution per digital bit in terms of Voltage. | |
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I2C Connections |
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User Address Bits |
| Specifies the bottom three "user" bits of the I2C 7-bit address | |
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Channel |
| Channel selection | |
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SDA |
| Pin used for SDA (data signal) | |
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SCL |
| Pin used for SCL (clock signal) | |
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Stop Delay |
| On older microcontroller devices there is a potential for the I2C hardware channel to lock up if there is not a 10ms delay between an I2C stop event and the next I2C start event. Most modern microcontrollers will not have a problem so this property can be disabled to speed up the I2C communications. | |
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Baud Select |
| Baud rate option selector | |
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Baud Rate |
| Baud rate to be used | |
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Simulation |
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Simulate Comms |
Component Source Code
Please click here to download the component source project: FC_Comp_Source_DAC_MCP4725.fcfx
Please click here to view the component source code (Beta): FC_Comp_Source_DAC_MCP4725.fcfx