Explain basic working of ideal operational amplifier, Electrical Engineering

Assignment Help:

Q. Explain basic working of Ideal operational amplifier?

The operational amplifier, known also as op amp, consists of several transistors, diodes, capacitors, and resistors. It is available in integrated-circuit form for less than one U.S. dollar. Being inexpensive, compact, and versatile, operational amplifiers are used in a variety of simple circuits.

Op-amp circuits, as we will see later, usually contain negative feedback. Op-amp circuits themselves can be regarded as building blocks. These blocks are characterized by their input resistance, output resistance, and open-circuit voltage amplification. The symbol for the op amp is shown in Figure. Two terminals labeled + and - are available for inputs. The voltages of these terminals are labeled with respect to the common terminal,

1801_Explain basic working of Ideal operational amplifier.png

1326_Explain basic working of Ideal operational amplifier1.png

denoted by a ground symbol. The output voltage is related to the difference between the two input voltages as

vo = A(vp - vn)

where A is the open-loop voltage gain. Thus, the op amp is basically a form of differential amplifier, in which the difference vp - vn is amplified. For an output voltage on the order of 12 V, the difference voltage vd is on the order of 0.12 mV, or 120 µV. The input impedance Zi is on the order of 1 M, while the output impedance Zo is on the order of 100  to 1k.


Related Discussions:- Explain basic working of ideal operational amplifier

Projects, I want project ideas.

I want project ideas.

Describe operation performed by instruction OUT47 h, Describe the operation...

Describe the operation performed by the instruction OUT 47 h, AL. This transfers the content of AL to I/O port 47h. See that I/O port number shows as 0047h on the 16 bit addres

Why positive feedback is used in oscillator, Q. Why positive feedback is us...

Q. Why positive feedback is used in oscillator? The main application of positive feedback is in oscillators. An oscillator generates AC output signal without any input AC signa

Senior Design Robotic Arm Project, This is basically a simple senior design...

This is basically a simple senior design project where the professors are giving us a limited budget and providing us with an Arduino Board. (We can use rasberry pi, beagle bone, e

Standard deviation of mean, For large number of measurements the mean is ca...

For large number of measurements the mean is calculated by taking a sample. Each sample that is taken has a mean. The mean of various sample difference from sample and are known to

Forward voltage triggering , Forward Voltage  Triggering If V a is i...

Forward Voltage  Triggering If V a is increased the collector to emitter voltages of both  transistor are  also increased. Hence  the leakage current at J 2 increase. This

Explain p - type semiconductor, Explain p - Type semiconductor. p - ...

Explain p - Type semiconductor. p - Type semiconductor:- (i) If small amount of trivalent impurity is added with to a pure semiconductor giving a large no. of holes in t

Application of electrochemical grinding, Explain the working principle, Sur...

Explain the working principle, Surface finish, material removal, accuracy,advantages and application of Electrochemical Grinding(ECG). (a) In electro chemical machining of pure

For the given circuit determine voltage, Q. For the circuit shown in Figure...

Q. For the circuit shown in Figure, determine v out (t).

Current flow if 0.45 coulombs is to be transferred in 5 ms, What current m...

What current must flow if 0.45 coulombs is to be transferred in 5 ms? Quantity of electricity, Q = It, then:

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd