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Op-Amps and Other Linear ICs
Multiple Choice

Please select the best answer from the choices below.

1 .       The closed-loop voltage gain of an inverting amplifier equals: [Hint]

 
 
 
 


2 .       The voltage follower has a: [Hint]

 
 
 
 


3 .       An astable multivibrator is also known as a: [Hint]

 
 
 
 


4 .       What three subcircuits does a phase locked loop (PLL) consist of? [Hint]

 
 
 
 


5 .       A series dissipative regulator is an example of a: [Hint]

 
 
 
 


6 .       With negative feedback, the returning signal: [Hint]

 
 
 
 


7 .       In a PLL, to obtain lock, the signal frequency must: [Hint]

 
 
 
 


8 .       If the input to a comparator is a sine wave, the output is a: [Hint]

 
 
 
 


9 .       The Schmitt trigger is a two-state device that is used for: [Hint]

 
 
 
 


10 .       A circuit that uses an amplifier with passive filter elements is called a(n): [Hint]

 
 
 
 


11 .       How many leads does the TO-5 metal can package of an operational amplifier have? [Hint]

 
 
 
 


12 .       With a differential gain of 50,000 and a common-mode gain of 2, what is the common-mode rejection ratio? [Hint]

 
 
 
 


13 .       What is the output waveform of the circuit?

[Hint]

 
 
 
 


14 .       What is the output voltage?

[Hint]

 
 
 
 


15 .       What is the output waveform?

[Hint]

 
 
 
 


16 .       What is the output waveform?

[Hint]

 
 
 
 


17 .       What is this circuit?

[Hint]

 
 
 
 


18 .       What is the cutoff frequency of this low-pass filter?

[Hint]

 
 
 
 


19 .       A circuit whose output is proportional to the difference between the input signals is considered to be which type of amplifier? [Hint]

 
 
 
 


20 .       What is the difference between common-mode and differential-mode input signals? [Hint]

 
 
 
 


21 .       The ratio between differential gain and common-mode gain is called: [Hint]

 
 
 
 


22 .       In an open-loop op-amp circuit, whenever the inverting input (–) is negative relative to the noninverting input (+), the output will: [Hint]

 
 
 
 


23 .       The major difference between ground and virtual ground is that virtual ground is only a: [Hint]

 
 
 
 


24 .       An ideal amplifier should have: [Hint]

 
 
 
 


25 .       In order for an output to swing above and below a zero reference, the op-amp circuit requires: [Hint]

 
 
 
 


26 .       A noninverting closed-loop op-amp circuit generally has a gain factor: [Hint]

 
 
 
 


27 .       If ground is applied to the (+) terminal of an inverting op-amp, the (–) terminal will: [Hint]

 
 
 
 


28 .       If the gain of a closed-loop inverting amplifier is 3.9, with an input resistor value of 1.6 kilohms, what value of feedback resistor is necessary? [Hint]

 
 
 
 


29 .       If a noninverting amplifier has an RIN of 1000 ohms and an RFB of 2.5 kilohms, what is the RIN voltage when 1.42 mV is applied to the correct input? [Hint]

 
 
 
 


30 .       If the feedback/input resistor ratio of a feedback amplifier is 4.6 with 1.7 V applied to the noninverting input, what is the output voltage value? [Hint]

 
 
 
 


31 .       Another name for a unity gain amplifier is: [Hint]

 
 
 
 


32 .       An output that is proportional to the addition of two or more inputs is from which type of amplifier? [Hint]

 
 
 
 


33 .       Op-amps used as high- and low-pass filter circuits employ which configuration? [Hint]

 
 
 
 


34 .       A portion of the output that provides circuit stabilization is considered to be: [Hint]

 
 
 
 


35 .       When a capacitor is used in place of a resistor in an op-amp network, its placement determines: [Hint]

 
 
 
 


36 .       What starts a free-running multivibrator? [Hint]

 
 
 
 


37 .       How many logic states does an S-R flip-flop have? [Hint]

 
 
 
 


38 .       What is the frequency of this 555 astable multivibrator?

mcq15_1038_1.gif [Hint]

 
 
 
 






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