使用PIC16C774 Ratiometric Sensing

This application note shows how to use the PIC16C774
microcontroller (MCU) in a ratiometric sensing applica-
tion. A block diagram of the application is shown in
Figure 1. The design takes advantage of the advanced
analog peripherals of the PIC16C774, including a
12-bit A/D converter and two on-chip voltage refer-
ences.
AN694
Ratiometric Sensing Using the PIC16C774
Other useful features of the microcontroller include a
Authors: Steve Bowling 9-bit addressable USART for serial communications
Microchip Technology Inc. and Master Synchronous Serial Port (MSSP) that sup-
ports the I2C and SPI protocols.



INTRODUCTION
This application note shows how to use the PIC16C774
microcontroller (MCU) in a ratiometric sensing applica-
tion. A block diagram of the application is shown in
Fi