Revision of OP AMP

How many of You Really done OP AMP Lecture and Study seriously ??

• Not done Sir but later on do it

• Yes started but not understand

• only attended the Lectures

• Not understand anything Not interested at all

Which of the following properties should an ideal op amp have?

• Infinitely wide bandwidth, infinitely high output impedance and perfect linearity.

• High DC gain, low input reactance and perfect linearity

• Infinitely high input impedance, perfect linearity and zero noise.

• Infinitely high gain, perfect linearity and zero input impedance.

Identify the Circuit Diagram

• Differentiator

• Integrator

• Adder

• Subtractor

When a differential amplifier is operated single-ended, …………

• the output is grounded

• one input is grounded and signal is applied to the other

• both inputs are connected together

• the output is not inverted

Select the Correct Ideal Characteristic's of OP AMP

(Multiple Selection)

• Slew Rate

• Equivalent ratio

• CMRR

• Differential voltage

• Feedback Resistance

Is Virtual Ground and Virtual Short Concept are same ??

• YES

• NO

The input offset current equals the ……….

• difference between two base currents

• average of two base currents

• collector current divided by current gain

• none of these

Differential amplifiers are used in

• Instrumentation amplifiers

• Voltage followers

• Voltage regulators

• Buffers

The two input terminals of an Op Amp are labeled as

• High and low

• Positive and negative

• Inverting and non inverting

• Differential ans non differential

The differential gain is ………

• very high

• very low

• dependent on input voltage

• about 100