STM32L151XE datasheet(103/136 Pages) STMICROELECTRONICS

Part #	STM32L151XE

Description	Ultra-low-power 32-bit MCU Arm®-based Cortex®-M3 with 512KB Flash, 80KB SRAM, 16KB EEPROM, LCD, USB, ADC, DAC

PDF	136 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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103 / 136 page

DS10002 Rev 10

103/136

STM32L151xE STM32L152xE

Electrical characteristics

114

6.3.17

12-bit ADC characteristics

Unless otherwise specified, the parameters given in Table 55 are guaranteed by design.

Table 54. ADC clock frequency

Symbol Parameter

Conditions

Min

Max

Unit

fADC

ADC clock

frequency

Voltage

range 1 & 2

2.4 V

≤ VDDA ≤ 3.6 V

VREF+ = VDDA

0.480

MHz

VREF+ < VDDA

VREF+ > 2.4 V

VREF+ < VDDA

VREF+ ≤ 2.4 V

1.8 V

≤ VDDA ≤ 2.4 V

VREF+ = VDDA

VREF+ < VDDA

Voltage range 3

Table 55. ADC characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDDA

Power supply

1.8

3.6

VREF+

Positive reference voltage

1.8(1)

-VDDA

VREF-

Negative reference voltage

VSSA

IVDDA

Current on the VDDA input pin

1000

1450

µA

IVREF(2) Current on the VREF input pin

Peak

400

700

Average

450

VAIN

Conversion voltage range(3)

-0(4)

-VREF+

12-bit sampling rate

Direct channels

Msps

Multiplexed channels

0.76

10-bit sampling rate

Direct channels

1.07

Msps

Multiplexed channels

0.8

8-bit sampling rate

Direct channels

1.23

Msps

Multiplexed channels

0.89

6-bit sampling rate

Direct channels

1.45

Msps

Multiplexed channels

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