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ST7FOXU0 bảng dữ liệu(PDF) 78 Page - STMicroelectronics

tên linh kiện ST7FOXU0
Giải thích chi tiết về linh kiện  1 additional output line
PDF  123 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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ST7FOXU0 bảng dữ liệu(HTML) 78 Page - STMicroelectronics

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On-chip peripherals
ST7FOXU0
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10.3
10-bit A/D converter (ADC)
10.3.1
Introduction
The on-chip Analog to Digital Converter (ADC) peripheral is a 10-bit, successive
approximation converter with internal sample and hold circuitry. This peripheral has up to 5
multiplexed analog input channels (refer to device pin out description) that allow the
peripheral to convert the analog voltage levels from up to 5 different sources.
The result of the conversion is stored in a 10-bit Data register. The A/D converter is
controlled through a Control/Status register.
10.3.2
Main features
●
10-bit conversion
●
Up to 5 channels with multiplexed input
●
Linear successive approximation
●
Data register (DR) which contains the results
●
Conversion complete status flag
●
On/off bit (to reduce consumption)
The block diagram is shown in Figure 35.
10.3.3
Functional description
Analog power supply
VDDA and VSSA are the high and low level reference voltage pins. In some devices (refer to
device pin out description) they are internally connected to the VDD and VSS pins.
Conversion accuracy may therefore be impacted by voltage drops and noise in the event of
heavily loaded or badly decoupled power supply lines.



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