M058SFAN Datasheet, PDF (50/72 Pages) List of Unclassifed Manufacturers – 32-bit Microcontroller

NuMicro M058S Series Datasheet
6.13 Analog-to-Digital Converter (ADC)
6.13.1 Overview
The NuMicro™ M058S series contains one 12-bit successive approximation analog-to-digital
converter (SAR A/D converter) with eight input channels. The A/D converter supports four
operation modes: Single, Burst, Single-cycle Scan and Continuous Scan mode. The A/D
converter can be started by software, external pin (STADC/P3.2) or PWM trigger.
6.13.2 Features
 Analog input voltage range: 0 ~ AV_DD.
 12-bit resolution and 10-bit accuracy is guaranteed
 Up to eight single-end analog input channels or 4 differential analog input channels
 Maximum ADC peripheral clock frequency is 16 MHz
 Up to 760 kSPS sample rate
 Four operation modes:
 Single mode: A/D conversion is performed one time on a specified channel.
 Burst mode: A/D converter samples and converts the specified single channel and
sequentially stores the result in FIFO.
 Single-cycle Scan mode: A/D conversion is performed only one cycle on all specified
channels with the sequence from the smallest numbered channel to the largest
numbered channel.
 Continuous Scan mode: A/D converter continuously performs Single-cycle Scan mode
until software stops A/D conversion.
 An A/D conversion can be started by:
 Software Write 1 to ADST bit
 External pin (STADC)
 PWM trigger with optional start delay period
 Each conversion result is held in data register of each channel with valid and overrun
indicators.
 Conversion result can be compared with specified value and user can select whether to
generate an interrupt when conversion result matches the compare register setting.
 Channel 7 supports 3 input sources: external analog voltage, internal band-gap voltage and
 Internal temperature sensor output.
Nov. 27, 2014
Page 50 of 72
Rev.1.03