STM32W108C8U64TR STMicroelectronics, STM32W108C8U64TR Datasheet - Page 156
STM32W108C8U64TR
Manufacturer Part Number
STM32W108C8U64TR
Description
16/32-BITS MICROS
Manufacturer
STMicroelectronics
Series
STM32r
Datasheet
1.STM32W108C8U63TR.pdf
(207 pages)
Specifications of STM32W108C8U64TR
Applications
RF4CE, Remote Control
Core Processor
ARM® Cortex-M3™
Program Memory Type
FLASH (64 kB)
Controller Series
STM32W
Ram Size
8K x 8
Interface
I²C, SPI, UART/USART
Number Of I /o
24
Voltage - Supply
1.18 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
48-VFQFN Exposed Pad
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Analog-to-digital converter
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Analog-to-digital converter
The STM32W108C8 analog-to-digital converter (ADC) is a first-order sigma-delta converter
with the following features:
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Figure 49
Figure 49. ADC block diagram
While the ADC Module supports both single-ended and differential inputs, the ADC input
stage always operates in differential mode. Single-ended conversions are performed by
connecting one of the differential inputs to VREF/2 while fully differential operation uses two
external inputs.
In high voltage mode, input buffers (with 0.25 gain only) may experience long term drift of its
input offset voltage that affects ADC accuracy. In these cases, only the 1.2V input range
mode of the ADC should be used. If measurement of signals >1.2V is required, then
external attenuation should be added.
Resolution of up to 12 bits
Sample times as fast as 5.33 µs (188 kHz)
Differential and single-ended conversions from six external and four internal sources
Two voltage ranges (differential): -VREF to +VREF, and –VDD_PADS to +VDD_PADS
Choice of internal or external VREF: internal VREF may be output
Digital offset and gain correction
Dedicated DMA channel with one-shot and continuous operating modes
shows the basic ADC structure.
Doc ID 018587 Rev 1
STM32W108C8
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