STM32H753II datasheet(174/361 Pages) STMICROELECTRONICS

tên linh kiện	STM32H753II

Giải thích chi tiết về linh kiện	32-bit Arm® Cortex®-M7 480MHz MCUs, 2MB Flash,1MB RAM, 46 com. and analog interfaces, crypto

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174 / 361 page

Electrical characteristics (rev Y)

STM32H753xI

174/360

DS12117 Rev 8

Figure 43. 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.

6.3.22

Voltage reference buffer characteristics

R L

C L

Buffered/Non-buffered DAC

DAC_OUTx

Buffer(1)

12-bit

digital to

analog

converter

ai17157V3

Table 90. VREFBUF characteristics(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDDA

Analog supply voltage

Normal mode

VSCALE = 000

2.8

3.3

3.6

VSCALE = 001

2.4

3.6

VSCALE = 010

2.1

3.6

VSCALE = 011

1.8

3.6

Degraded mode

VSCALE = 000

1.62

2.80

VSCALE = 001

1.62

2.40

VSCALE = 010

1.62

2.10

VSCALE = 011

1.62

1.80

VREFBUF

_OUT

Voltage Reference

Buffer Output

Normal mode

VSCALE = 000

2.5

VSCALE = 001

2.048

VSCALE = 010

1.8

VSCALE = 011

1.5

Degraded mode(2)

VSCALE = 000

VDDA−

150 mV

-VDDA

VSCALE = 001

VDDA−

150 mV

-VDDA

VSCALE = 010

VDDA−

150 mV

-VDDA

VSCALE = 011

VDDA−

150 mV

-VDDA

TRIM

Trim step resolution

±0.05

±0.2

Load capacitor

0.5

1.50

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