STM32L462CEU6 datasheet(151/198 Pages) STMICROELECTRONICS

部件名	STM32L462CEU6

功能描述	Ultra-low-power ARM® Cortex®-M4 32-bit MCUFPU, 100DMIPS, 512KB Flash, 160KB SRAM, analog, audio, AES

PDF	198 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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STM32L462CE STM32L462RE STM32L462VE

Electrical characteristics

174

Figure 29. 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 58: I/O static characteristics.

4. Ton is the Refresh phase duration. Toff is the Hold phase duration. Refer to RM0394 reference manual for more details.

Table 69. DAC characteristics(1) (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

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