Interpreting of Data Sheets – 2 MCQ’s

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This set of Linear Integrated Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Interpreting of Data Sheets – 2″.

1. Find the expression for output offset voltage?
a) VooT = [RF/R1×Vio] + (RF×Io)
b) VooT = [1+(RF/R1)]×(Vio) + (RF×Io)
c) VooT = [1+(RF/R1)]/(Vio) + (RF×Io)
d) VooT = [RF/R1]×(Vio) + (RF/Io)

2. Why it is necessary to calibrate all op-amp in the system periodically?
a) To maintain current drift of a system
b) To maintain output offset voltage in op-amp
c) To maintain accuracy and linearity of a system
d) None of the mentioned

3. How are input offset voltage of op-amp expressed
a) Microvolts per week
b) Nanovolts per week
c) Megavolts per week
d) Millivolts per week

4. Determine the maximum possible change in output offset voltage after 3 month if the LH0041C op-amp is initially nulled and room temperature, voltage across terminal, +Vcc & -Vee remain constant.
a) △VooT = 456.78mv
b) △VooT = 3.452mv
c) △VooT = 21.1mv
d) None of the mentioned

5. An amplifier has a supply voltage ±15v. Compute its peak to peak output swing
a) 36v
b) 30v
c) 26v
d) 49v

6. Choose the temperature dependent parameter
a) Common mode rejection ratio
b) Voltage gain
c) Output voltage swing
d) Absolute maximum power dissipation

7. How to minimize the drift in input signal amplifier without affecting the performance of the circuit?
a) All of the mentioned Choosing small value of external components
b) Enhancing the input signal amplifier
c) Reducing the gain of op-amp
d) All of the mentioned

8. Find out the incorrect statement.
a) Power consumption of op-amp decrease with increasing ambient temperature
b) Output short circuit current of op-amp decreases with increasing temperature.
c) Common mode voltage range of op-amp increases with increasing supply voltage value
d) Power consumption of op-amp decreases with increasing supply voltage

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