STM32L151XE datasheet(107/134 Pages) STMICROELECTRONICS

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STM32L151xE STM32L152xE

Electrical characteristics

113

6.3.18

DAC electrical specifications

Data guaranteed by design, unless otherwise specified.

Table 58. DAC characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDDA

Analog supply voltage

1.8

3.6

VREF+

Reference supply

voltage

VREF+ must always be below

VDDA

1.8

3.6

VREF-

Lower reference voltage

VSSA

IDDVREF+(1)

Current consumption on

VREF+ supply

VREF+ = 3.3 V

No load, middle code (0x800)

130

220

µA

No load, worst code (0x000)

220

350

IDDA(1)

Current consumption on

VDDA supply

VDDA = 3.3 V

No load, middle code (0x800)

210

320

No load, worst code (0xF1C)

320

520

RL(2)

Resistive load

DAC output buffer ON

CL(2)

Capacitive load

Output impedance

DAC output buffer OFF

VDAC_OUT

Voltage on DAC_OUT

output

DAC output buffer ON

0.2

VDDA – 0.2

DAC output buffer OFF

0.5

VREF+ –

1LSB

DNL(1)

Differential non

linearity(3)

CL ≤ 50 pF, RL ≥ 5 kΩ

DAC output buffer ON

-1.5

LSB

No RL, CL ≤ 50 pF

DAC output buffer OFF

-1.5

INL(1)

Integral non linearity(4)

CL ≤ 50 pF, RL ≥ 5 kΩ

DAC output buffer ON

-2

No RL, CL ≤ 50 pF

DAC output buffer OFF

-2

Offset(1)

Offset error at code

0x800 (5)

CL ≤ 50 pF, RL ≥ 5 kΩ

DAC output buffer ON

-±10

±25

No RL, CL ≤ 50 pF

DAC output buffer OFF

-±5

±8

Offset1(1)

Offset error at code

0x001(6)

No RL, CL ≤ 50 pF

DAC output buffer OFF

-±1.5

±5

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