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STM32L4A6VG bảng dữ liệu(PDF) 202 Page - STMicroelectronics

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Giải thích chi tiết về linh kiện  Ultra-low-power Arm® Cortex®-M4 32-bit MCUFPU, 100DMIPS, 1MB Flash, 320KB SRAM, USB OTG FS, audio, AESHASH, ext. SMPS
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STM32L4A6VG bảng dữ liệu(HTML) 202 Page - STMicroelectronics

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Electrical characteristics
STM32L4A6xG
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DS11584 Rev 8
Figure 37. 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.
IDDV(DAC)
DAC consumption from
VREF+
DAC output
buffer ON
No load, middle
code (0x800)
-
185
240
µA
No load, worst code
(0xF1C)
-
340
400
DAC output
buffer OFF
No load, middle
code (0x800)
-
155
205
Sample and hold mode, buffer ON,
CSH = 100 nF, worst case
-
185 ₓ
Ton/(Ton
+Toff)
(4)
400 ₓ
Ton/(Ton
+Toff)
(4)
Sample and hold mode, buffer OFF,
CSH = 100 nF, worst case
-
155 ₓ
Ton/(Ton
+Toff)
(4)
205 ₓ
Ton/(Ton
+Toff)
(4)
1. Guaranteed by design.
2. In buffered mode, the output can overshoot above the final value for low input code (starting from min value).
3. Refer to Table 70: I/O static characteristics.
4. Ton is the Refresh phase duration. Toff is the Hold phase duration. Refer to RM0351 reference manual for more details.
Table 82. DAC characteristics(1) (continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit



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