STM32WLE4JCU6TR datasheet(125/145 Pages) STMICROELECTRONICS

125 / 145 page

DS13105 Rev 8

125/145

STM32WLE5/E4xx

Electrical characteristics

133

Table 85. DAC accuracy(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

DNL

Differential non

linearity (2)

DAC output buffer ON

±2

LSB

DAC output buffer OFF

±2

Monotonicity

10 bits

Guaranteed

INL

Integral non linearity(3)

DAC output buffer ON, CL ≤ 50 pF, RL ≥ 5 kΩ

±4

DAC output buffer OFF, CL ≤ 50 pF, no RL

±4

Offset

Offset error at code

0x800(3)

DAC output buffer ON

CL ≤ 50 pF, RL ≥ 5 kΩ

VREF+ = 3.6 V

±12

VREF+ = 1.8 V

±25

DAC output buffer OFF, CL ≤ 50 pF, no RL

±8

Offset1

Offset error at code

0x001(4)

DAC output buffer OFF, CL ≤ 50 pF, no RL

±5

OffsetCal

Offset Error at code

0x800 after calibration

DAC output buffer ON

CL ≤ 50 pF, RL ≥ 5 kΩ

VREF+ = 3.6 V

±5

VREF+ = 1.8 V

±7

Gain

Gain error(5)

DAC output buffer ON, CL ≤ 50 pF, RL ≥ 5 kΩ

±0.5

DAC output buffer OFF, CL ≤ 50 pF, no RL

±0.5

TUE

Total unadjusted error

DAC output buffer ON, CL ≤ 50 pF, RL ≥ 5 kΩ

±30

LSB

DAC output buffer OFF, CL ≤ 50 pF no RL

±12

TUECal

Total unadjusted error

after calibration

DAC output buffer ON, CL ≤ 50 pF, RL ≥ 5 kΩ

±23

LSB

SNR

Signal-to-noise ratio

DAC output buffer ON, CL ≤ 50 pF, RL ≥ 5 kΩ,

1 kHz, BW 500 kHz

-71.2-

DAC output buffer OFF, CL ≤ 50 pF, no RL,

1 kHz, BW 500 kHz

-71.6-

THD

Total harmonic

distortion

DAC output buffer ON, CL ≤ 50 pF, RL ≥ 5 kΩ,

1 kHz

--78

DAC output buffer OFF, CL ≤ 50 pF, no RL,

1 kHz

--79

SINAD

Signal-to-noise and

distortion ratio

DAC output buffer ON, CL ≤ 50 pF, RL ≥ 5 kΩ,

1 kHz

-70.4-

DAC output buffer OFF, CL ≤ 50 pF, no RL,

1 kHz

-71

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