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Op-Amp as Differential Amplifier Video Lecture | Analog and Digital Electronics - Electrical Engineering (EE)
FAQs on Op-Amp as Differential Amplifier Video Lecture - Analog and Digital Electronics - Electrical Engineering (EE)
| 1. What is the purpose of using an Op-Amp as a differential amplifier? |  |
Ans. An Op-Amp used as a differential amplifier amplifies the voltage difference between two input signals while rejecting any common-mode signals, making it ideal for applications where noise rejection is important.
| 2. How does an Op-Amp differential amplifier work? | |
Ans. In an Op-Amp differential amplifier, the Op-Amp amplifies the voltage difference between its two input terminals, which are connected to the non-inverting and inverting inputs. The output voltage is proportional to this voltage difference.
| 3. What are the advantages of using an Op-Amp as a differential amplifier? | |
Ans. Some advantages of using an Op-Amp as a differential amplifier include high common-mode rejection ratio (CMRR), high input impedance, and the ability to amplify small differential signals accurately.
| 4. How can the gain of an Op-Amp differential amplifier be calculated? | |
Ans. The gain of an Op-Amp differential amplifier can be calculated by dividing the output voltage by the voltage difference between the two input signals. This gain is determined by the feedback resistors in the circuit.
| 5. What are some common applications of Op-Amp differential amplifiers in electrical engineering? | |
Ans. Op-Amp differential amplifiers are commonly used in instrumentation amplifiers, audio signal processing, and data acquisition systems where accurate amplification of small differential signals is required.
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