STM8L151C3 datasheet(95/122 Pages) STMICROELECTRONICS

95 / 122 page

DocID018780 Rev 9

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STM8L151x2, STM8L151x3

Electrical parameters

102

9.3.12

12-bit ADC1 characteristics

In the following table, data is guaranteed by design, not tested in production.

Table 48. ADC1 characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDDA

Analog supply voltage

1.8

3.6

VREF+

Reference supply

voltage

2.4 V

≤VDDA≤ 3.6 V

2.4

VDDA

1.8 V

≤VDDA≤ 2.4 V

VDDA

VREF-

Lower reference voltage

VSSA

IVDDA

Current on the VDDA

input pin

1000

1450

µA

IVREF+

Current on the VREF+

input pin

400

700

(peak)(1)

µA

450

(average)(1)

µA

VAIN

Conversion voltage

range

0(2)

VREF+

Temperature range

-40

125

°C

RAIN

External resistance on

VAIN

on PF0 fast channel

50(3)

on all other channels

CADC1

Internal sample and hold

capacitor

on PF0 fast channel

on all other channels

fADC1

ADC1 sampling clock

frequency

2.4 V

≤VDDA≤3.6 V

without zooming

0.320

MHz

1.8 V

≤VDDA≤2.4 V

with zooming

0.320

MHz

fCONV

12-bit conversion rate

VAIN on PF0 fast

channel

1(4)(5)

MHz

VAIN on all other

channels

760(4)(5)

kHz

fTRIG

External trigger

frequency

tconv

1/fADC1

tLAT

External trigger latency

3.5

1/fSYSCLK

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