Analog-To-Digital Converter (Adc) - WCH CH32V003 Series Reference Manual

CH32V003 Reference Manual
Chapter 9 Analog-to-digital Converter (ADC)
The ADC module contains a 10-bit successive approximation type analog-to-digital converter with up to
24MHz input clock. It supports 8 external channels and 2 internal signal source sampling sources. Single
conversion and continuous conversion of channels, automatic scan mode between channels, intermittent mode,
external trigger mode, double sampling, trigger delay, etc. can be accomplished. The channel voltage can be
monitored to see if it is within the threshold range by using the analog watchdog function.
9.1 Main features
l
10-bit resolution
l Supports 8 external channels and 2 internal signal sources for sampling
l Multiple sampling conversion methods for multiple channels: single, continuous, scan, trigger,
intermittent, etc.
l Data alignment modes: left-aligned, right-aligned
l Sampling time can be programmed separately by channel
l Both rule conversion and injection conversion support external triggering
l Analog watchdog to monitor channel voltage, self-calibration function
l ADC channel input range: 0 ≤ V
l Trigger delay
V1.3
≤ V
IN DDA
70
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