Operational amplifier applications using 8-Bit PIC microcontrollers (PDF!) from Microchip:
This document aims at uncovering some of the more important parameters of the op amp and the significance in certain applications. Specific examples and case studies of applications using the on-chip op amp of the PIC16F families of microcontrollers will be discussed. A comparison of the characteristics of the op amp on PIC16F will be done with the stand-alone op amps like MCP602 and TL082.