STM32F302XD datasheet(141/168 Pages) STMICROELECTRONICS

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STM32F302xD STM32F302xE

Electrical characteristics

146

Figure 52. 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.

6.3.21

Comparator characteristics

2. Quiescent mode refers to the state of the DAC a keeping steady value on the output, so no dynamic consumption is

involved.

3. Data based on characterization results, not tested in production.

Table 87. Comparator characteristics(1)

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

VDDA

Analog supply voltage

3.6

VIN

Comparator input voltage

range

-0

VDDA

VBG

Scaler input voltage

VREFINIT

VSC

Scaler offset voltage

±5

±10

tS_SC

Scaler startup time from

power down

0.2

tSTART

Comparator startup time

VDDA ≥ 2.7 V

µs

VDDA < 2.7 V

Propagation delay for

200 mV step with 100 mV

overdrive

VDDA ≥ 2.7 V

VDDA < 2.7 V

Propagation delay for full

range step with 100 mV

overdrive

VDDA ≥ 2.7 V

VDDA < 2.7 V

VOFFSET

Comparator offset error

VDDA ≥ 2.7 V

±5

±10

VDDA < 2.7 V

±25

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