STM32F373VC datasheet(19/128 Pages) STMICROELECTRONICS

19 / 128 page

STM32F37x

Functional overview

Doc ID 022691 Rev 3

19/128

3.14

Digital-to-analog converter (DAC)

The devices feature up to two 12-bit buffered DACs with three output channels that can be

used to convert three digital signals into three analog voltage signal outputs. The internal

structure is composed of integrated resistor strings and an amplifier in inverting

configuration.

This digital Interface supports the following features:

●

Up to two DAC converters with three output channels:

–

DAC1 with two output channels

–

DAC2 with one output channel.

●

8-bit or 10-bit monotonic output

●

Left or right data alignment in 12-bit mode

●

Synchronized update capability

●

Noise-wave generation

●

triangular-wave generation

●

Dual DAC channel independent or simultaneous conversions (DAC1 only)

●

DMA capability for each channel

●

External triggers for conversion

3.15

Fast comparators (COMP)

The STM32F37x embeds up to 2 comparators with rail-to-rail inputs and high-speed output.

The reference voltage can be internal or external (delivered by an I/O).

The threshold can be one of the following:

●

DACs channel outputs

●

External I/O

●

Internal reference voltage (VREFINT) or submultiple (1/4 VREFINT, 1/2 VREFINT and 3/4

VREFINT)

The comparators can be combined into a window comparator.

Both comparators can wake up the device from Stop mode and generate interrupts and

breaks for the timers.

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