Digital-To-Analog Converter (Dac); Dac Introduction; Dac Main Features - ST STM32F446 Series Reference Manual

RM0390
14

Digital-to-analog converter (DAC)

14.1

DAC introduction

The DAC module is a 12-bit, voltage output digital-to-analog converter. The DAC can be
configured in 8- or 12-bit mode and may be used in conjunction with the DMA controller. In
12-bit mode, the data could be left- or right-aligned. The DAC has two output channels, each
with its own converter. In dual DAC channel mode, conversions could be done
independently or simultaneously when both channels are grouped together for synchronous
update operations. An input reference pin, V
resolution.
14.2

DAC main features

• Two DAC converters: one output channel each
•
Left or right data alignment in 12-bit mode
•
Synchronized update capability
•
Noise-wave generation
•
Triangular-wave generation
•
Dual DAC channel for independent or simultaneous conversions
•
DMA capability for each channel
•
DMA underrun error detection
•
External triggers for conversion
•
Input voltage reference,
Figure 92
description.
V
REF+
shows the block diagram of a DAC channel and
(shared with ADC) is available for better
REF+
RM0390 Rev 4
Digital-to-analog converter (DAC)
Table 93 gives the pin
401/1328
422