STM32F303VCT6 datasheet(112/132 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F302xx/STM32F303xx

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DocID023353 Rev 6

Figure 34. 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.

6.3.20

Comparator characteristics

R LOAD

C LOAD

Buffered/Non-buffered DAC

DACx_OUT

Buffer(1)

12-bit

digital to

analog

converter

ai17157

Table 71. Comparator characteristics(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDDA

Analog supply voltage

3.6

VIN

Comparator input voltage

range

VDDA

VBG

Scaler input voltage

1.2

VSC

Scaler offset voltage

±5

±10

tS_SC

Scaler startup time from

power down

0.1

tSTART

Comparator startup time

Startup time to reach propagation delay

specification

µs

Propagation delay for

200 mV step with 100 mV

overdrive

Ultra-low power mode

4.5

µs

Low power mode

0.7

1.5

Medium power mode

0.3

0.6

High speed mode

VDDA ≥ 2.7 V

100

VDDA < 2.7 V

100

240

Propagation delay for full

range step with 100 mV

overdrive

Ultra-low power mode

µs

Low power mode

0.7

2.1

Medium power mode

0.3

1.2

High speed mode

VDDA ≥ 2.7 V

180

VDDA < 2.7 V

110

300

Voffset

Comparator offset error

±4

±10

dVoffset/dT

Offset error temperature

coefficient

-18

µV/°

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