STM8L151X6 datasheet(113/146 Pages) STMICROELECTRONICS

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STM8L151x6/8 STM8L152x6/8

Electrical parameters

123

9.3.13

12-bit DAC characteristics

In the following table, data are guaranteed by design.

Table 50. DAC characteristics

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

VDDA

Analog supply voltage

1.8

3.6

VREF+

Reference supply voltage

1.8

VDDA

IVREF

Current consumption on VREF+

supply

VREF+ = 3.3 V, no load,

middle code (0x800)

130

220

µA

VREF+ = 3.3 V, no load,

worst code (0x000)

220

350

IVDDA

Current consumption on VDDA

supply

VDDA = 3.3 V, no load,

middle code (0x800)

210

320

VDDA = 3.3 V, no load,

worst code (0x000)

320

520

Temperature range

-40

125

°C

RL(1) (2)

Resistive load

DACOUT buffer ON

Output impedance

DACOUT buffer OFF

CL(3)

Capacitive load

DAC_OUT

(4)

DAC_OUT voltage

DACOUT buffer ON

0.2

VDDA - 0.2

DACOUT buffer OFF

VREF+ -1 LSB

tsettling

Settling time (full scale: for a 12-

bit input code transition between

the lowest and the highest input

codes when DAC_OUT reaches

the final value ±1LSB

)

RL ≥ 5 kΩ, CL≤ 50 pF

µs

Update rate

Max frequency for a correct

DAC_OUT (@95%) change

when small variation of the input

code (from code i to i+1LSB).

RL ≥ 5 kΩ, CL ≤50 pF

Msps

tWAKEUP

Wakeup time from OFF state.

Input code between lowest and

highest possible codes.

RL ≥ 5 kΩ, CL≤50 pF

µs

PSRR+

Power supply rejection ratio (to

VDDA) (static DC measurement)

RL≥ 5 kΩ, CL≤50 pF

--60

-35

1. Resistive load between DACOUT and GNDA

2. Output on PF0 or PF1

3. Capacitive load at DACOUT pin

4. It gives the output excursion of the DAC

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