STM32L010RB datasheet(74/89 Pages) STMICROELECTRONICS

74 / 89 page

Electrical characteristics

STM32L010RB

74/89

DS12319 Rev 3

Equation 1: RAIN max formula

The presented formula above (Equation 1) is a representation of an hypothetical ideal ADC

and illustrates how the parameters influence each other. It is not to be used for computation

of actual values.

tSTAB(3)

Power-up time

µs

tConV(3)

Total conversion time

(including sampling time)

fADC = 16 MHz

0.875

10.81

µs

14 to 173 (tS for sampling +12.5 for

successive approximation)

1/fADC

1. VDDA minimum value can be decreased in specific temperature conditions.

Refer to Table 53: RAIN max for fADC = 16 MHz.

2. A current consumption proportional to the APB clock frequency has to be added

Refer to Table 29: Peripheral current consumption in run or Sleep mode.

3. Guaranteed by design, not tested in production.

4. Standard channels have an extra protection resistance which depends on supply voltage.

Refer to Table 53: RAIN max for fADC = 16 MHz.

Table 52. ADC characteristics (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

RAIN

fADC CADC

()

---------------------------------------------------------------- R

ADC

–

Table 53. RAIN max for fADC = 16 MHz(1)

Ts (cycles)

tS (µs)

RAIN max for fast

channels (kΩ)

RAIN max for standard channels (kΩ)

VDD > 2.7 V

VDD > 2.4 V

VDD > 2.0 V

VDD > 1.8 V

1.5

0.09

0.5

< 0.1

3.5

0.22

0.2

< 0.1

7.5

0.47

2.5

1.7

1.5

< 0.1

12.5

0.78

3.2

19.5

1.22

6.5

5.7

5.5

3.5

39.5

2.47

12.2

79.5

4.97

26.2

< 0.1

160.5

10.03

49.2

1. Guaranteed by design.

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