Datasheet

DS9118 Rev 14 119/149
STM32F303xB STM32F303xC Electrical characteristics
125
Figure 36. 12-bit buffered /non-buffered DAC
1. The DAC integrates an output buffer that can be used to reduce the output impedance and to drive external loads directly
without the use of an external operational amplifier. The buffer can be bypassed by configuring the BOFFx bit in the
DAC_CR register.
t
WAKEUP
(3)
Wakeup time from off state
(Setting the ENx bit in the
DAC Control register)
C
LOAD
≤ 50 pF,
R
LOAD
≥ 5 kΩ
- 6.5 10 µs
PSRR+
(1)
Power supply rejection ratio
(to V
DDA
) (static DC
measurement
C
LOAD
= 50 pF,
No R
LOAD
≥ 5 kΩ,
-–67 –40 dB
1. Guaranteed by design.
2. Quiescent mode refers to the state of the DAC a keeping steady value on the output, so no dynamic consumption is
involved.
3. Guaranteed by characterization results.
Table 75. DAC characteristics (continued)
Symbol Parameter Conditions Min Typ Max Unit
R
L
C
L
Buffered/Non-buffered DAC
DAC_OUTx
Buffer(1)
12-bit
digital to
analog
converter
ai17157V3
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