On this page, we will review the Analog Electronics Short Notes PDF Part 38. Welcome to Poly Notes Hub, a leading destination for analog electronics notes for engineering students.
Author Name: Arun Paul
Analog Electronics Short Notes Pdf Part 38
Here we have listed some analog electronics short notes for all types of exams like diploma engineering, degree engineering, and GATE exam and many more. In every page, we have listed 10 short analog electronics questions and answers and anyone can download it by a single click for future use.
1. What is Operational Amplifier?
An Operational Amplifier (Op-Amp) is a high-gain, DC-coupled electronic voltage amplifier with differential inputs and usually a single-ended output. It is used in signal conditioning, filtering, or mathematical operations such as addition, subtraction, integration, and differentiation.
2. What is Differential Amplifier?
A Differential Amplifier is a type of amplifier that amplifies the difference between two input signals. It is the basic building block of an Op-Amp and helps in rejecting common-mode signals.
3. What is Single Ended Input Arrangement?
In a Single Ended Input Arrangement, one input terminal of the differential amplifier is connected to the signal while the other input is grounded. The output depends on the signal applied to the single active input.
4. What is Double Ended Input Arrangement?
In a Double Ended Input Arrangement, both input terminals of the differential amplifier receive signals. The output is proportional to the difference between the two input signals.
5. What is Common Mode Signals in OPAMP?
Common Mode Signals are the signals that are present simultaneously and in-phase at both inputs of the Op-Amp. Ideally, an Op-Amp should reject common mode signals.
6. What is Differential Mode Signals in OPAMP?
Differential Mode Signals are the difference between the two input signals. An Op-Amp ideally amplifies only this differential signal and ignores any common part.
7. What is CMRR in OPAMP?
CMRR stands for Common Mode Rejection Ratio. It is a measure of an Op-Amp’s ability to reject common-mode signals and amplify only differential signals.
8. What is the Full Form of CMRR?
The full form of CMRR is Common Mode Rejection Ratio.
9. What is Output Offset Voltage in OPAMP?
Output Offset Voltage is the unwanted DC voltage present at the output of an Op-Amp when both inputs are grounded, caused by mismatches in internal components.
10. What is Input Offset Voltage in OPAMP?
Input Offset Voltage is the differential DC voltage required between the input terminals of an Op-Amp to make the output voltage zero. It results from internal imbalances in the Op-Amp.