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Application Notes


All of our application notes are listed individually below. But you can download all of the application notes in one document by downloading the Appllcation Notes Library. Click the link below.

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AN-10 The Rail to Rail Advantage

Synopsis: Examples are given to illustrate the technical advantages for a power operational amplifier whose output voltage can closely approach the power supply voltages both for dual and single supply applications. Supporting calculations are given using a dedicated spreadsheet that can be downloaded from the internet.




AN-12 The Problem With Current Limit

Synopsis: Traditional current limiting circuits may not offer the operational amplifier the protection it needs to be reliable in an application circuit. The problems associated with one traditional current limiting circuit are analyzed and a new solution is explained featuring the PAD121 Current Limit Accessory module offered by Power Amp Design.




AN-14 Cooling Power Op Amps

Synopsis: The article outlines the advantages of active cooling as compared to passive heat sinks in reducing the volume and weight of power op amps in industrial applications. The relative reliability of passive vs. active cooling is summarized. The advantages of pre-assembled amplifier and heat sink combinations are illustrated. 




AN-16 PCB Layout Guidelines for High Voltage Amplifiers

Synopsis: Standard company design rules for printed circuit boards may not meet the requirements for high voltage amplifiers manufactured by Power Amp Design. The article proposes PCB geometries consistent with successful field applications for high voltage amplifiers.




AN-18 Motherboard Layout Guidelines for Power Op Amps

Synopsis: The article targets several high priority goals in the layout of motherboards to support power operational amplifier application circuits. PCB designers who follow the suggestions are assured that the power op amp circuits will perform to their maximum capability.




AN-20 Beginner's Guide to PAD Power

Synopsis: The article provides a step by step guide for beginners using the PAD Power spread sheet, based on Excel, for analyzing power amplifier application circuits for reliability in terms of output transistor junction temperature and heat sink temperature. Some knowledge of the Excel spread sheet is assumed.




AN-22 Single Supply Operation With Power Op Amps

Synopsis: The article outlines the problems and solutions for operating power op amps with a single high power supply voltage. Several application circuits are proposed that may help the user reduce system costs while maintaining high performance. Some familiarity with op amp circuits is assumed.




AN-24 Eliminating Circuit Noise From Cooling Fans


Synopsis: The article covers the electrical considerations for connecting the cooling fan of Power Amp Design power op amps to the signal circuits.




AN-26 About Power Ratings

Synopsis: A brief discussion of the meaning of power ratings as they relate to power operational amplifiers




AN-28 Power Op Amp Specifications Discussion

Synopsis: The meaning of the performance specifications for power op amps is discussed with tips and insights.




AN-32 Using Evaluation Kits to Implement Parallel Operation

Synopsis: How to use two or more evaluation kits to connect power op amps for parallel operation




AN-34 Force & Sense Application for Power Op Amps


Synopsis: The article details a force and sense application for power op amps using a familiar differential amplifier application for IC small signal circuits. Some familiarity with op amp circuits is assumed.




AN-38 (Rev C) Fine Tuning Current Limit


Synopsis: By necessity only a few values of current limiting sense resistors can be supplied with evaluation kits. This application note shows how to achieve intermediate values of current limit with the resistors supplied in our evaluation kits.




AN-40 Using the CJS01 Cage Jack Strip


Synopsis: This article provides details for using the CJS01 in the assembly operation of circuit boards.





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