STM32W108CBU6 STMICROELECTRONICS [STMicroelectronics], STM32W108CBU6 Datasheet - Page 130

• Manufacturer Part Number: STM32W108CBU6
• Description: High-performance, IEEE 802.15.4 wireless system-on-chip
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Analog-to-digital converter
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Analog-to-digital converter
The STM32W108 ADC is a first-order sigma-delta converter with the following features:
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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.
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
Doc ID 16252 Rev 2
STM32W108CB, STM32W108HB