ATXMEGA8E5 datasheet(61/153 Pages) MICROCHIP

61 / 153 page

 2018 Microchip Technology Inc.

Data Sheet Complete

DS40002059A-page 61

ATxmega32E5/16E5/8E5

30. AC – Analog Comparator

30.1 Features



Two Analog Comparators



Selectable propagation delay



Selectable hysteresis



Small



Large



Analog Comparator output available on pin



Flexible Input Selection



All pins on the port



Output from the DAC



Bandgap reference voltage



A 64-level programmable voltage scaler of the internal AVCC voltage



Interrupt and event generation on



Rising edge



Falling edge



Toggle



Window function interrupt and event generation on



Signal above window



Signal inside window



Signal below window



Constant current source with configurable output pin selection



Source of asynchronous event

30.2 Overview

The Analog Comparator (AC) compares the voltage level on two inputs and gives a digital output based on this compari-

son. The Analog Comparator may be configured to give interrupt requests and/or synchronous/asynchronous events upon

several different combinations of input change.

One important property of the Analog Comparator when it comes to the dynamic behavior, is the hysteresis. This parame-

ter may be adjusted in order to find the optimal operation for each application.

The input section includes analog port pins, several internal signals and a 64-level programmable voltage scaler. The ana-

log comparator output state can also be directly available on a pin for use by external devices. Using as pair they can also

be set in Window mode to monitor a signal compared to a voltage window instead of a voltage level.

A constant current source can be enabled and output on a selectable pin. This can be used to replace, for example, exter-

nal resistors used to charge capacitors in capacitive touch sensing applications.

The analog comparators are always grouped in pairs on each port. These are called analog comparator 0 (AC0) and ana-

log comparator 1 (AC1). They have identical behavior, but separate control registers. Used as pair, they can be set in

window mode to compare a signal to a voltage range instead of a voltage level.

PORTA has one AC pair. Notation is ACA.

ATXMEGA8E5 bảng dữ liệu(PDF) 61 Page - Microchip Technology

ATXMEGA8E5 bảng dữ liệu(HTML) 61 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

bảng dữ liệu tải về

Link URL