STM32L063C8 datasheet(94/121 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32L063x8

94/121

DocID025660 Rev 6

dGain/dT(1)

Gain error temperature

coefficient

VDDA 3.3V

TA = 0 to 50 C

DAC output buffer off

-10

-2

µV/°C

VDDA 3.3V

TA = 0 to 50 C

DAC output buffer on

-40

-8

TUE(1)

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)(8)

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 design, not tested in production.

2. Connected between DAC_OUT and VSSA.

3. Difference between two consecutive codes - 1 LSB.

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

4095.

5. Difference between the value measured at Code (0x800) and the ideal value = VDDA/2.

6. Difference between the value measured at Code (0x001) and the ideal value.

7. Difference between ideal slope of the transfer function and measured slope computed from code 0x000 and 0xFFF when

buffer is off, and from code giving 0.2 V and (VDDA – 0.2) V when buffer is on.

8. In buffered mode, the output can overshoot above the final value for low input code (starting from min value).

Table 65. DAC characteristics (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

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