EE3950_Class_Notes_Chapter_9

EE3950_Class_Notes_Chapter_9 - Operational Amplifiers The...

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Unformatted text preview: Operational Amplifiers The operational amplifier, also know as an op amp, is essentially a voltage amplifier with an extremely high voltage gain. One of the building blocks for the construction of analog electronics systems. It may be combined with various external components for a wide variety of purposes. Operational Amplifiers They are usually fabricated as an integrated circuit, an array of transistors, resistors, and capacitors, on a single silicon chip. DIP dual in-line package is the most common package form. Operational Amplifiers in v out v A v = An ideal amplifier is defined as: Ideal Operational Amplifiers An op amp is built as a differential amplifier, where the output voltage is defined as the product of the gain with the voltage difference between of the amplifiers two inputs. This means that any stray noise appearing on both inputs are cancelled, and only the voltage difference is amplified. Ideal Operational Amplifiers It has two inputs: v +- the non-inverting input;...
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EE3950_Class_Notes_Chapter_9 - Operational Amplifiers The...

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