STM32L100X6 datasheet(85/103 Pages) STMICROELECTRONICS

tên linh kiện	STM32L100X6

Giải thích chi tiết về linh kiện	Ultra-low-power 32-bit MCU ARM®-based Cortex®-M3, 128KB Flash, 16KB SRAM, 2KB EEPROM, LCD, USB, ADC, DAC

PDF	103 Pages

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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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STM32L100x6/8/B-A

Electrical characteristics

Figure 22. ADC accuracy characteristics

Figure 23. Typical connection diagram using the ADC

1. Refer to Table 57: Maximum source impedance RAIN max for the value of RAIN and Table 55: ADC

characteristics for the value of CADC

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

pad capacitance (roughly 7 pF). A high Cparasitic value will downgrade conversion accuracy. To remedy

this, fADC should be reduced.

2. ADC accuracy vs. negative injection current: Injecting a negative current on any analog input pins should be avoided as this

significantly reduces the accuracy of the conversion being performed on another analog input. It is recommended to add a

Schottky diode (pin to ground) to analog pins which may potentially inject negative currents.

Any positive injection current within the limits specified for IINJ(PIN) and ΣIINJ(PIN) in Section 6.3.12 does not affect the ADC

accuracy.

3. Guaranteed by characterization results.

STM32L100X6 bảng dữ liệu(PDF) 85 Page - STMicroelectronics