Explain working of inverting amplifier, Electrical Engineering

Assignment Help:

Q. Explain working of Inverting Amplifier?

One common op-amp circuit is shown in Figure. For the case of finite voltage gain Ao of an op amp that is otherwise ideal, the output voltage becomes

527_Explain working of Inverting Amplifier1.png

150_Explain working of Inverting Amplifier.png


which is independent of the op amp's gain Ao. The sign inversion associated with Equation makes the amplifier "inverting." Generally if Ao is at least 200 times the magnitude of R2/R1, then the actual gain given by Equation will be within 1% of the ideal gain given by Equation. Assuming infinite gain of the op amp, it follows that

vd = v2 - v1 = 0 or v1 = v2

Since terminal 2 is at ground potential (zero) in Figure, terminal 1 is said to be a virtual ground.Notice that when R2 =R1, the inverting amplifier becomes a voltage follower with inverted sign and a gain magnitude of unity.


Related Discussions:- Explain working of inverting amplifier

First generation 1946- 1654 - history of computer, First Generation (1946- ...

First Generation (1946- 1654) In the  first  generation computer  vacuum tubes and valves were used. These computer were very large in size ( thousands of square feet on the fl

Give a short description of soft ferrites, Give a short description of soft...

Give a short description of soft ferrites . Soft ferrites and their applications: all non- metallic compounds are consisting of ferric oxide and one or two bivalent metal oxid

Write a note on feedback of emitter follower, Q. Write a note on feedback o...

Q. Write a note on feedback of emitter follower? The emitter follower can be seen to be an example of negative feedback when the relationship is put in the form

Main difference between a latch and a flip flop, Question: a) What is ...

Question: a) What is the main difference between a latch and a flip flop? b) Draw the logic diagram of an SR-latch using only NAND gates. c) A positive edge triggered

Combinational circuit, design a combinational ckt ,which detect whatever a ...

design a combinational ckt ,which detect whatever a no.(in binary) is divisable by 3 or 4

Describe the term pure hardware delay, Question: (a) Describe the term...

Question: (a) Describe the term "Pure Hardware Delay" in microcontroller design. (b) Name the three types of subroutines which are placed at the interrupt location in ROM a

Sketch the labelled frequency response, Question: (a) Consider the foll...

Question: (a) Consider the following RC admittance function: (i) If the function is to be realised using the Cauer II Form, find the values of the different components

Explain the limiting the spectrum, Explain the Limiting the Spectrum Th...

Explain the Limiting the Spectrum This low-pass filter is known an anti-aliasing filter. These filters are originated at the input to most applications. Since they are required

Energy stored in inductor, One circuit has resistor 40? connected in series...

One circuit has resistor 40? connected in series with inductor  15H and dc voltage 220V. Calculate: i)  Time constant ii)  Current at time (i) iii)  Current at time 0.0

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