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STM32H750VB bảng dữ liệu(PDF) 279 Page - STMicroelectronics

tên linh kiện STM32H750VB
Giải thích chi tiết về linh kiện  32-bit Arm® Cortex®-M7 480MHz MCUs, 128 Kbyte Flash, 1 Mbyte RAM, 46 com. and analog interfaces, crypto
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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STM32H750VB bảng dữ liệu(HTML) 279 Page - STMicroelectronics

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DS12556 Rev 5
279/334
STM32H750VB STM32H750ZB STM32H750IB STM32H750XB
Electrical characteristics (rev V)
311
Figure 92. 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.
ENOB
Effective number of
bits
DAC output buffer ON,
CL ≤ 50 pF, RL ≥ 5 ? , 1 kHz
-
10.9
-
bits
DAC output buffer OFF,
CL ≤ 50 pF, no RL, 1 kHz
-
10.9
-
1. Guaranteed by characterization.
2. Difference between two consecutive codes minus 1 LSB.
3. Difference between the value measured at Code i and the value measured at Code i on a line drawn between Code 0 and
last Code 4095.
4. Difference between the value measured at Code (0x001) and the ideal value.
5. Difference between the ideal slope of the transfer function and the measured slope computed from code 0x000 and 0xFFF
when the buffer is OFF, and from code giving 0.2 V and (VREF+ - 0.2 V) when the buffer is ON.
6. Signal is −0.5dBFS with Fsampling=1 MHz.
Table 186. DAC accuracy(1) (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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