Internal Block of Op - Amp

Which is not the internal circuit of the operational amplifier?

• Differential amplifier

• Level translator

• Output driver

• Clamper

What is the purpose of the differential amplifier stage in the internal circuit of Op-amp?

• Low gain to differential mode signal

• Cancel common mode signal

• Low gain to common mode signal

A Differential Amplifier amplifies

• Input signal with higher voltage

• Input voltage with smaller voltage

• None of the Mentioned

If the output is measured between two collectors of transistors, then the Differential amplifier with two input signal is said to be configured as

• Dual Input Balanced Output

• Dual Input Unbalanced Output

• Single Input Balanced Output

A differential amplifier is capable of amplifying

• DC input signal only

• AC input signal only

• AC & DC input signal

A differential amplifier is capable of amplifying

• 180^o in phase with the input signal

• 180^o out of phase with the input signal

• Same as that of the input signal

Which of the following electrical characteristics is not exhibited by an ideal op-amp?

• Infinite voltage gain

• Infinite bandwidth

• Infinite output resistance

• Infinite slew rate

Which is not the ideal characteristic of an op-amp?

• Input Resistance = 0

• Output impedance = 0

• Bandwidth = ∞

• Open loop voltage gain = ∞

What is the purpose of Pin numbers 2,3,6 & 8

• 1) Inverting Input

  2) Non - Inverting Input

  3) Output

  4) No Connection

• 1) Inverting Input

  2) Output

  3) Non - Inverting Input

  4) No Connection

• 1) Non - Inverting Input

  2) Inverting Input

  3) Output

  4) No Connection

What are the methods used for improving CMRR

• 1) Constant Current Source

  2) Current Mirror

• 1) Constant current gain method

  2) Current Mirror

• None of these