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.

Component Pack

COMMSA

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

Downloadable macro reference

	OutputDAC
Outputs a value to the DAC,
- UINT	Output
Range: 0-65535 / 0=0V / 65535=VCC
- VOID	Return

	Initialise
Initialise the SPI bus ready for communications,
- VOID	Return

Property reference

	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.
	Console Data
Selects if the console data is automatically generated or not
	Scope Traces
Selects if the scope traces are automatically generated or not
	API
	Connections
	Simulations
	Data Recorder Trace
	Simulate Comms