Digital-To-Analog Converter (Dac); Introduction; Dac Main Features - ST STM32F102 Series Reference Manual

Digital-to-analog converter (DAC)

11 Digital-to-analog converter (DAC)
Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx
microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes.
Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx
microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes.
High-density devices are STM32F101xx and STM32F103xx microcontrollers where the
Flash memory density ranges between 256 and 512 Kbytes.
This section applies to high-density STM32F101xx and STM32F103xx devices only.
11.1

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. 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 operation. An input reference pin V
11.2

DAC main features

●
Two DAC converters: one output channel each
●
8-bit or 12-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
●
DMA capability for each channel
●
External triggers for conversion
●
Input voltage reference
The block diagram of a DAC channel is shown in
in Table 50.
184/690
is available for better resolution.
REF+
V
REF+
Figure 39 and the pin description is given
RM0008