STM32L072KB datasheet(105/147 Pages) STMICROELECTRONICS

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STM32L072xx

Electrical characteristics

117

dOffset/dT(2)

Offset error temperature

coefficient (code 0x800)

VDDA 3.3V

VREF+3.0 V

TA = 0 to 50 C

DAC output buffer off

-20

-10

µV/°C

VDDA 3.3V

VREF+3.0 V

TA = 0 to 50 C

DAC output buffer on

020

Gain(2)

Gain error(8)

CL  50 pF, RL  5 k

DAC output buffer on

+0.1 / -0.2% +0.2 / -0.5%

No RLOAD, CL  50 pF

DAC output buffer off

+0 / -0.2%

+0 / -0.4%

dGain/dT(2)

Gain error temperature

coefficient

VDDA 3.3V

VREF+3.0 V

TA = 0 to 50 C

DAC output buffer off

-10

-2

µV/°C

VDDA 3.3V

VREF+3.0 V

TA = 0 to 50 C

DAC output buffer on

-40

-8

TUE(2)

Total unadjusted error

CL  50 pF, RL  5 k

DAC output buffer on

-12

LSB

No RLOAD, CL  50 pF

DAC output buffer off

-8

tSETTLING

Settling time (full scale: for a

12-bit code transition between

the lowest and the highest

input codes till DAC_OUT

reaches final value ±1LSB

CL  50 pF, RL  5 k

-7

µs

Update rate

Max frequency for a correct

DAC_OUT change (95% of

final value) with 1 LSB

variation in the input code

CL  50 pF, RL  5 k

Msps

tWAKEUP

Wakeup time from off state

(setting the ENx bit in the DAC

Control register)(9)

CL  50 pF, RL  5 k

-9

µs

PSRR+

VDDA supply rejection ratio

(static DC measurement)

CL  50 pF, RL  5 k

-60

-35

1. Guaranteed by characterization results.

2. Guaranteed by design, not tested in production.

3. Connected between DAC_OUT and VSSA.

4. Difference between two consecutive codes - 1 LSB.

5. Difference between measured value at Code i and the value at Code i on a line drawn between Code 0 and last Code

4095.

Table 67. DAC characteristics (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

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