Table 57. Dac Pins; Figure 54. Dac Channel Block Diagram - ST STM32F40 Series Reference Manual

Digital-to-analog converter (DAC)

Figure 54. DAC channel block diagram

EXTI_9
V
DDA
V
SSA
V
R EF+
Table 57.
Name
V
REF+
V
DDA
V
SSA
DAC_OUTx
Note: Once the DAC channelx is enabled, the corresponding GPIO pin (PA4 or PA5) is
automatically connected to the analog converter output (DAC_OUTx). In order to avoid
parasitic consumption, the PA4 or PA5 pin should first be configured to analog (AIN).
311/1422
TSELx[2:0] bits
SWTR IGx
TIM2_T RGO
TIM4_T RGO
TIM5_T RGO
TIM6_T RGO
TIM7_T RGO
TIM8_T RGO
12-bit
DHRx
DAC pins
Signal type
Input, analog reference
positive
Input, analog supply
Input, analog supply ground
Analog output signal
Doc ID 018909 Rev 4
DAC control register
DMAENx
DM A req ue stx
Control logicx
TENx
MAMPx[3:0] bits
trianglex
LFSRx
WAVENx[1:0] bits
12-bit
DORx
12-bit
Digital-to-analog
converterx
The higher/positive reference voltage for the DAC,
≤ ≤
1.8 V V V
REF+ DDA
Analog power supply
Ground for analog power supply
DAC channelx analog output
RM0090
DAC_ OU Tx
ai14708b
Remarks