RM0367 Rev 7 353/1043
RM0367 Digital-to-analog converter (DAC)
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15 Digital-to-analog converter (DAC)
15.1 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. An input reference voltage,
V
REF+
(shared with ADC), is available. The output can optionally be buffered for higher
current drive.
15.2 DAC1 main features
The devices integrate two DAC converters, featuring one output channel each: DAC_OUT1
and DAC_OUT2.
DAC1 main features are the following:
• One data holding register
• Left or right data alignment in 12-bit mode
• Synchronized update capability
• Noise-wave generation
• Triangular-wave generation
• Dual DAC channels with independent or simultaneous conversions
• DMA capability (including underrun detection)
• External triggers for conversion
• Input voltage reference, V
REF+
Figure 58 shows the block diagram of a DAC channel and Table 69 gives the pin
description.