STM32W108CB datasheet(130/179 Pages) STMICROELECTRONICS

Il numero della parte	STM32W108CB

Spiegazioni elettronici	High-performance, IEEE 802.15.4 wireless system-on-chip

PDF	179 Pages

Scroll/Zoom	100%

Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

Logo

130 / 179 page

Analog-to-digital converter

STM32W108CB, STM32W108HB

130/179

Doc ID 16252 Rev 2

Analog-to-digital converter

The STM32W108 ADC is a first-order sigma-delta converter with the following features:

●

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

ADC block diagram shows the basic ADC structure.

Figure 46.

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.

STM32W108CB Scheda tecnica(PDF) 130 Page - STMicroelectronics