Component: DAC (AD5662) (Analog Output)
| Author | Matrix TSL |
| Version | 1.0 |
| Category | Analog Output |
DAC (AD5662) component
16-bit external DAC connected to the microcontroller using SPI.
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.
Downloadable macro reference
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OutputDAC |
| Outputs a value to the DAC, | |
 - UINT
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Output |
| Range: 0-65535 / 0=0V / 65535=VCC | |
 - VOID
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Return |
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Initialise |
| Initialise the SPI bus ready for communications, | |
| - VOID
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Return |
Property reference
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Properties |
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Channel |
| SPI Channel selector | |
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Prescale |
| Prescale option selector | |
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MOSI |
| SPI Data Out Pin SDO - Also Known as Master Out Slave In (MOSI) when used in Master mode. | |
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MISO |
| SPI Data In Pin SDI - Also Known as Master In Slave Out (MISO) when used in Master mode. | |
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CLK |
| SPI Clock Pin CLK - The Clock signal is driven by the SPI master. | |
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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. | |
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Console Data |
| Selects if the console data is automatically generated or not | |
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Scope Traces |
| Selects if the scope traces are automatically generated or not | |
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API |
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Connections |
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Simulations |
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Data Recorder Trace |
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Simulate Comms |