PIC18F45J50-I/SOSQTP 데이터 시트보기 (PDF) - Microchip Technology

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PIC18F45J50-I/SOSQTP

28/44-Pin, Low-Power, High-Performance USB Microcontrollers with nanoWatt XLP Technology

Microchip Technology 

PIC18F46J50 FAMILY

24.0 COMPARATOR VOLTAGE

REFERENCE MODULE

The comparator voltage reference is a 16-tap resistor

ladder network that provides a selectable reference

voltage. Although its primary purpose is to provide a

reference for the analog comparators, it may also be

used independently of them.

Figure 24-1 provides a block diagram of the module.

The resistor ladder is segmented to provide two ranges

of CVREF values and has a power-down function to

conserve power when the reference is not being used.

The module’s supply reference is provided by VDD/VSS.

FIGURE 24-1:

COMPARATOR VOLTAGE REFERENCE BLOCK DIAGRAM

VDD

CVREN

CVRR

8R

R

R

R

R

16 Steps

R

R

R

CVR<3:0>

CVREF

8R

 2011 Microchip Technology Inc.

DS39931D-page 391

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