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TB3194

PIC16/PIC18 ADC² Technical Brief

Introduction

Author: Christopher Best, Microchip Technology Inc.

An Analog-to-Digital Converter (ADC) converts an analog input signal into a digital number representing

the magnitude of the input voltage. Microchip’s 12-bit ADC with Computation (ADC2) outputs a 12-bit

binary representation of the original signal and adds special hardware features to provide post-processing

functions that can be performed on the conversion result.

This technical brief provides an overview of the basic ADC features and functions, and describes the

additional computation features that are not found in other ADC modules. This document will not cover

the Capacitive Voltage Divider (CVD) feature, which is covered in TB3198, but may refer to CVD in

general terms. This technical brief will cover the ADC2 module found in Microchip’s PIC16 and PIC18 8-

bit architecture.

© 2018 Microchip Technology Inc.90003194A-page 1

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