M0519 Datasheet, PDF (50/69 Pages) List of Unclassifed Manufacturers – 32-bit Microcontroller

M0519
6.16 Enhanced Analog-to-Digital Converter (EADC)
6.16.1 Overview
The NuMicro^® M0519 Series contains two 12-bit successive approximation analog-to-digital converters
(SAR A/D converter) with 16 input channels. The two A/D converters ADCA and ADCB can be
sampled with Simultaneous or Single Sampling mode. The A/D converters can be started by software,
PWM triggers, timer0~3 overflow pulse triggers, ADINT0, ADINT1 interrupt EOC pulse trigger and
external STADC pin input signal.
Note: The analog input port pins must be configured as input type before the EADC function is
enabled.
6.16.2 Features
 Analog input voltage range: 0~V_REF(Max to 5.0V).
 12-bit resolution and 10-bit accuracy is guaranteed.
 Up to 16 single-end analog input channels.
 Two SAR ADC converters.
 Four EADC interrupts with individual interrupt vector addresses.
 Maximum EADC clock frequency: 16MHz.
 Up to 1.6M SPS conversion rate, each of ADC converter conversion time less than 1.25μs.
 Two operating modes
 Single sampling mode: two ADC converters run at normal operation.
 Simultaneous sampling mode: Allow two ADC converters can be sampled
simultaneously.
 An A/D conversion can be started by:
 Writing 1 to ADST(ADSSTR[n]) bit ( n = 0~15) through software
 External pin STADC
 Timer0~3 overflow pulse triggers
 ADINT0, ADINT1 interrupt EOC pulse triggers
 PWM triggers
 Conversion results are held in 16 data registers with valid and overrun indicators.
 SAMPLEA0~7 ADC control logic modules, each of them is configurable for ADCA converter
channel AINA0~7 and trigger source.
 SAMPLEB0~7 ADC control logic modules, each of them is configurable for ADCB converter
channel AINB0~7 and trigger source.
 Channel AINA0 supports 2 input sources: external analog voltage and internal OP0 Amplifier
output voltage.
 Channel AINB0 supports 2 input sources: external analog voltage and internal OP1 Amplifier
output voltage.
 Channel AINA7 supports 4 input sources: external analog voltage, internal fixed band-gap
voltage, internal temperature sensor output, and analog ground.
Nov. 02, 2016
Page 50 of 69
Rev 1.02