STM32F446VC datasheet(149/201 Pages) STMICROELECTRONICS

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DocID027107 Rev 5

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STM32F446xC/E

Electrical characteristics

174

RLOAD(2)

Resistive load with buffer

RO(2)

Impedance output with

buffer OFF

When the buffer is OFF, the Minimum

resistive load between DAC_OUT and

VSS to have a 1% accuracy is 1.5 MΩ

CLOAD(2)

Capacitive load

Maximum capacitive load at DAC_OUT

pin (when the buffer is ON).

DAC_OUT

min(2)

Lower DAC_OUT voltage

with buffer ON

0.2

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 (0x1C7) to (0xE38) at VREF+ = 1.7 V

DAC_OUT

max(2)

Higher DAC_OUT voltage

with buffer ON

VDDA –

0.2

DAC_OUT

min(2)

Lower DAC_OUT voltage

with buffer OFF

-0.5

It gives the maximum output excursion

of the DAC.

DAC_OUT

max(2)

Higher DAC_OUT voltage

with buffer OFF

VREF+

– 1LSB

IVREF+(4)

DAC DC VREF current

consumption in quiescent

mode (Standby mode)

170

240

µA

With no load, worst code (0x800) at

VREF+ = 3.6 V in terms of DC

consumption on the inputs

-50

With no load, worst code (0xF1C) at

VREF+ = 3.6 V in terms of DC

consumption on the inputs

IDDA(4)

DAC DC VDDA current

consumption in quiescent

mode(3)

280

380

µA

With no load, middle code (0x800) on

the inputs

475

625

µA

With no load, worst code (0xF1C) at

VREF+ = 3.6 V in terms of DC

consumption on the inputs

DNL(4)

Differential non linearity

Difference between two

consecutive code-1LSB)

±0.5

LSB

Given for the DAC in 10-bit

configuration.

±2

LSB

Given for the DAC in 12-bit

configuration.

INL(4)

Integral non linearity

(difference between

measured value at Code i

and the value at Code i on a

line drawn between Code 0

and last Code 1023)

±1

LSB

Given for the DAC in 10-bit

configuration.

±4

LSB

Given for the DAC in 12-bit

configuration.

Offset(4)

Offset error

(difference between

measured value at Code

(0x800) and the ideal value

= VREF+/2)

±10

mV Given for the DAC in 12-bit configuration

±3

LSB

Given for the DAC in 10-bit at VREF+ =

3.6 V

±12

LSB

Given for the DAC in 12-bit at VREF+ =

3.6 V

Table 85. DAC characteristics (continued)

Symbol

Parameter

Min

Typ

Max

Unit

Comments

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