CD00191174 Datasheet, PDF(97/112 Page) STMicroelectronics – High-density access line, ARM-based 32-bit MCU

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CD00191174 Datasheet, PDF (97/112 Pages) STMicroelectronics – High-density access line, ARM-based 32-bit MCU

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STM32F101xC, STM32F101xD, STM32F101xE

Electrical characteristics

Figure 52. Power supply and reference decoupling (VREF+ connected to VDDA)

STM32F10xxx

VREF+/VDDA

1 ÂµF // 10 nF

VREFâ/VSSA

ai14381b

5.3.19

1. VREF+ and VREF- inputs are available only on 100-pin packages.

DAC electrical specifications

Table 59. DAC characteristics

Symbol

Parameter

Min Typ

Max(1)

Unit

Comments

VDDA

Analog supply voltage

2.4

3.6

V

VREF+

VSSA

RLOAD(2)

RO(2)

Reference supply voltage

2.4

Ground

0

Resistive load with buffer ON 5

Impedance output with buffer

OFF

3.6

V

VREF+ must always be below

VDDA

0

V

kÎ©

When the buffer is OFF, the

15

kÎ©

minimum resistive load

between DAC_OUT and VSS to

have a 1% accuracy is 1.5 MÎ©

CLOAD(2)

Capacitive load

Maximum capacitive load at

50

pF DAC_OUT pin (when the buffer

is ON).

DAC_OUT

min(2)

Lower DAC_OUT voltage with

buffer ON

0.2

DAC_OUT Higher DAC_OUT voltage with

max(2)

buffer ON

V

VDDA â 0.2 V

It gives the maximum output

excursion of the DAC.

It corresponds to 12-bit input

code (0x0E0) to (0xF1C) at

VREF+ = 3.6 V and (0x155) and

(0xEAB) at VREF+ = 2.4 V.

DAC_OUT

min(2)

DAC_OUT

max(2)

Lower DAC_OUT voltage with

buffer OFF

Higher DAC_OUT voltage with

buffer OFF

0.5

mV

It gives the maximum output

VREF+ â 1LSB V

excursion of the DAC.

Doc ID 14610 Rev 8

97/112

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