PIC16C54简易AD转换

This applicaTIon note describes a method for

implemenTIng analog to digital (A/D) conversion on the

PIC16C5X series of microcontrollers. The converter

requires only five external components and is software

and hardware configurable for conversion resoluTIons

from 6-bits up to 10-bits and conversion TImes of 250

ms

or longer. The method is usable for both voltage and

current conversion and uses a software calibration

technique that compensates for time and temperature

drift as well as component errors. PIC16C5X microcontrollers

are ideal for simple analog applications

because