STM32F328C8 datasheet(94/109 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F328C8

94/109

DocID026351 Rev 3

6.3.19

DAC electrical specifications

Table 61. DAC characteristics

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

VDDA

Analog supply voltage

DAC output buffer ON

2.4

3.6

RLOAD(1) Resistive load

DAC output buffer ON

RO(1)

Output impedance

DAC output buffer OFF

CLOAD(1) Capacitive load

DAC output buffer ON

VDAC_OUT(

Voltage on DAC_OUT

output

Corresponds to 12-bit input code

(0x0E0) to (0xF1C) at VDDA = 3.6 V

and (0x155) and (0xEAB) at VDDA =

2.4 V

0.2

VDDA – 0.2

DAC output buffer OFF

-0.5

VDDA– 1LSB

IDDA(3)

DAC DC current

consumption in quiescent

mode(2)

With no load, middle code (0x800)

on the input

380

µA

With no load, worst code (0xF1C) on

the input.

480

µA

DNL(3)

Differential non linearity

Difference between two

consecutive code-1LSB)

Given for a 10-bit input code

DAC1 channel 1

±0.5

LSB

Given for a 12-bit input code

DAC1 channel 1

±2

LSB

Given for a 10-bit input code

DAC1 channel 2 & DAC2 channel 1

-0.75/+0.25 LSB

Given for a 12-bit input code

DAC1 channel 2 & DAC2 channel 1

-3/+1

LSB

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 4095)

Given for a 10-bit input code

±1

LSB

Given for a 12-bit input code

±4

LSB

Offset(3)

Offset error

(difference between

measured value at Code

(0x800) and the ideal value

= VDDA/2)

±10

Given for a 10-bit input code at

VDDA = 3.6 V

±3

LSB

Given for a 12-bit input code

±12

LSB

Gain

error(3)

Gain error

Given for a 12-bit input code

±0.5

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