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Circuit Analysis For Dummies by John Santiago

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Chapter 10

Letting Operational Amplifiers Do the Tough Math Fast

In This Chapter

arrow Performing hand calculations electronically with operational amplifiers

arrow Modeling secrets of operational amplifiers with dependent sources

arrow Taking a look at op-amp circuits

arrow Putting together some systems

The operational amplifier (op amp) is a powerful tool when you’re working with active devices in modern-day circuit applications. Because op amps can do calculations electronically, they perform mathematical operations (like addition, subtraction, multiplication, division, integration, and derivatives) fast. You can put together basic op-amp circuits to build accurate mathematical models that predict complex and real-world behavior — like when the breakfast pastry in your toaster will turn into a flaming torch.

This chapter introduces op-amp circuits, demonstrates how to use them to perform certain mathematical operations, and gives you a peek at the more complex processing actions that op amps serve as the building blocks for.

The Ins and Outs of Op-Amp Circuits

Commercial op amps first entered the market ...

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