ST7FLU05MCE View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
ST7FLU05MCE
STMicroelectronics
'ST7FLU05MCE' PDF : 124 Pages View PDF
ST7LUS5, ST7LU05, ST7LU09
On-chip peripherals
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
OObbssoolleettee PPrroodduucctt((ss)) -- OObbssoolleettee PPrroodduucctt((ss)) 10.3.3
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 43.
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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