DAC

Purpose

Generate an output voltage from the input signal; the output voltage is calculated as \((input\cdot\mathbf{Scale}+\mathbf{Offset})\)

Library

STM32

Description

../../_images/dac.svg

This block generates a voltage on the DAC pin in the range of \(0\,\mathrm{V}\) to \(3.3\,\mathrm{V}\). The output is scalable and can be used with an offset, where the output signal is calculated as \((input\cdot\mathbf{Scale}+\mathbf{Offset})\). Output voltage limitations can also be set.

Parameters

DAC selection

Configure the DAC pin either as by DAC unit and channel, or by Port and Pin number.

DAC unit

Selects the desired DAC interface.

DAC channel

Index of the DAC output channel for a specific DAC interface.

Port

Selects the port name of the DAC channel.

Pin number

Defines the pin number of the DAC channel.

Scale

A scale factor for the output signal.

Offset

An offset for the scaled output signal.

Minimum output voltage

The lowest value that the output voltage can reach.

Maximum output voltage

The highest value that the output voltage can reach.