STM32F100R4 datasheet(70/84 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F100x4, STM32F100x6, STM32F100x8, STM32F100xB

70/84

Doc ID 16455 Rev 2

5.3.17

DAC electrical specifications

Table 45.

DAC characteristics

Symbol

Parameter

Min

Typ

Max(1)

Unit

Comments

VDDA

Analog supply voltage

2.4

3.6

VREF+

Reference supply voltage

2.4

3.6

VREF+ must always be below

VDDA

VSSA

Ground

RLOAD

(2)

Resistive load with buffer ON



(1)

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 M



CLOAD

(1)

Capacitive load

Maximum capacitive load at

DAC_OUT pin (when the buffer

is ON).

DAC_OUT

min(1)

Lower DAC_OUT voltage with buffer

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 (0x155) and

(0xEAB) at VREF+ = 2.4 V

DAC_OUT

max(1)

Higher DAC_OUT voltage with buffer

VDDA –

0.2

DAC_OUT

min(1)

Lower DAC_OUT voltage with buffer

OFF

0.5

It gives the maximum output

excursion of the DAC.

DAC_OUT

max(1)

Higher DAC_OUT voltage with buffer

OFF

VREF+

– 1LSB

IDDVREF+

DAC DC current consumption in

quiescent mode (Standby mode)

220

µA

With no load, worst code

(0xF1C) at VREF+ = 3.6 V in

terms of DC consumption on the

inputs

IDDA

DAC DC current consumption in

quiescent mode (Standby mode)

380

µA

With no load, middle code

(0x800) on the inputs

480

µA

With no load, worst code

(0xF1C) at VREF+ = 3.6 V in

terms of DC consumption on the

inputs

DNL(3)

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(3)

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

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