STM32L412RBI3PTR datasheet(150/192 Pages) STMICROELECTRONICS

部件名	STM32L412RBI3PTR

功能描述	Ultra-low-power Arm® Cortex®-M4 32-bit MCUFPU, 100DMIPS, up to 128KB Flash, 40KB SRAM, analog, ext. SMPS

PDF	192 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

150 / 192 page

Electrical characteristics

STM32L412xx

150/192

DS12469 Rev 8

Figure 32. Typical connection diagram using the ADC

1. Refer to Table 75: ADC characteristics for the values of RAIN and CADC.

2. Cparasitic represents the capacitance of the PCB (dependent on soldering and PCB layout quality) plus the

pad capacitance (refer to Table 69: I/O static characteristics for the value of the pad capacitance). A high

Cparasitic value will downgrade conversion accuracy. To remedy this, fADC should be reduced.

3. Refer to Table 69: I/O static characteristics for the values of Ilkg.

General PCB design guidelines

Power supply decoupling should be performed as shown in Figure 18: Power supply

scheme. The 10 nF capacitor should be ceramic (good quality) and it should be placed as

close as possible to the chip.

MS33900V5

Sample and hold ADC converter

12-bit

converter

Cparasitic

(2)

Ilkg

(3)

CADC

VDDA

RAIN

(1)

VAIN

AINx

RADC

STM32L412RBI3PTR 数据表(PDF) 150 Page - STMicroelectronics