Linear Integrated Circuits And Applications

What is a comparator?

Define settling time of D/A converter.

How does a precision rectifier differ from the conventional rectifier?

What output voltage would be produced by a D/A converter whose output range is 0 to 10 V and whose input binary number is 0101 for a 4-bit DAC?

What is the main drawback of dual slope ADC?

Give the classification of voltage regulators with example.

A PLL frequency multiplier has an input frequency of $f$ and a decade counter is included in the loop. What will be the frequency of the PLL output?

Why is frequency compensation required in operational amplifiers?

Draw a sample and hold circuit.

Which is fastest ADC? Give proper reasoning.

With the help of neat circuit diagram, explain the working of a basic bandgap voltage reference.

Explain the steps used for fabrication of integrated diodes with necessary diagrams.

Sketch the basic circuit using OPAMP to perform the mathematical operation of differentiation and explain its working. What are the limitations of the basic differentiator?

Define output offset voltage. Explain the methods to nullify offset voltage.

Explain the working of multiplier using suitable OPAMP circuit diagram and supporting equations.

Draw the circuit diagram of a phase locked loop (PLL) used as amplitude modulation (AM) detector and explain its operation.

Draw the block diagram and explain principle of working, characteristic and applications of a frequency synthesizer.

Explain the working of a switched capacitor filter with supporting circuit diagram. How can a resistor be realized using switched capacitor?

Explain the working of weighted resistor D/A converter with circuit diagram.

With a suitable diagram, explain the working of successive approximation type A/D converter.

Discuss the principle of operation of NE565 PLL circuit.

If an IC 555 timer is used to generate a ramp voltage with constant collector current of $1\text{ mA}$, $V_{CC} = 15\text{ V}$ and $C = 0.1\text{ }\mu\text{F}$, what would be the slope of the ramp generated? How much is the peak value of the ramp generated? What is the duration of the ramp?

Design a timer which should turn on heater immediately after pressing a push button and should hold heater in ON state for 6 seconds.

Explain the monostable operation of 555 timer.

Write two requirements to be met for a good current source.

Why VCO is also called as v-to-f converter?

What is a switched capacitor filter?

What output voltage would be produced by a D/A converter whose output range is 0 to 10 V and whose input binary number is 0110 for a 4-bit DAC?

What is a power amplifier?

What is the purpose of connecting a capacitor at the input and the output side of an IC voltage regulator?

Mention any two applications of PLL.

For an n-bit flash-type A/D converter, how many comparators are required?

What is meant by frequency synthesizing?

Why are integrators preferred over differentiators?

With suitable circuit diagram, explain the operation of voltage reference circuit using temperature compensation.

What are the different methods used in fabrication of integrated resistors? Explain any one method with suitable diagrams.

Draw and explain the circuit of a voltage to current converter if the load is (i) floating and (ii) grounded.

Define and explain slew rate. What is full-power bandwidth? Also explain the methods to improve the slew rate.

Explain the working of a anti logarithmic amplifier using suitable op-amp circuit diagram and supporting equations.

Draw the functional diagram of 723 regulators and explain its working.

Draw the block diagram and explain the principle of working, characteristic and applications of a frequency shift keying (FSK) demodulator.

Explain the operation of frequency to voltage converter with suitable circuit diagram.

Explain the working of R-2R ladder D/A converter with circuit diagram.

Explain the oversampling A/D converter with functional block diagram.

Explain with block diagram how PLL is used as frequency modulation (FM) detector.

Design a VCO having the maximum range of 1 kHz. Assume power supply $ V_{cc} = 15 \text{ V} $. Required pulse width should not exceed 100 $ \mu\text{s} $.

Design an astable multivibrator circuit which will flash the electric bulb such that its on time will be 4 seconds and off time will be 2 seconds.

Explain the working of Schmitt trigger using 555 timer.

Write two requirements to be met for a good current source.

Why VCO is also called as v-to-f converter?

What is a switched capacitor filter?

What output voltage would be produced by a D/A converter whose output range is 0 to 10 V and whose input binary number is 0110 for a 4-bit DAC?

What is a power amplifier?

What is the purpose of connecting a capacitor at the input and the output side of an IC voltage regulator?

Mention any two applications of PLL.

For an n-bit flash-type A/D converter, how many comparators are required?

What is meant by frequency synthesizing?

Why are integrators preferred over differentiators?

With suitable circuit diagram, explain the operation of voltage reference circuit using temperature compensation.

What are the different methods used in fabrication of integrated resistors? Explain any one method with suitable diagrams.

Draw and explain the circuit of a voltage to current converter if the load is (i) floating and (ii) grounded.

Define and explain slew rate. What is full-power bandwidth? Also explain the methods to improve the slew rate.

Explain the working of a anti logarithmic amplifier using suitable op-amp circuit diagram and supporting equations.

Draw the functional diagram of 723 regulators and explain its working.

Draw the block diagram and explain the principle of working, characteristic and applications of a frequency shift keying (FSK) demodulator.

Explain the operation of frequency to voltage converter with suitable circuit diagram.

Explain the working of R-2R ladder D/A converter with circuit diagram.

Explain the oversampling A/D converter with functional block diagram.

Explain with block diagram how PLL is used as frequency modulation (FM) detector.

Design a VCO having the maximum range of 1 kHz. Assume power supply $ V_{cc} = 15 \text{ V} $. Required pulse width should not exceed 100 $ \mu\text{s} $.

Design an astable multivibrator circuit which will flash the electric bulb such that its on time will be 4 seconds and off time will be 2 seconds.

Explain the working of Schmitt trigger using 555 timer.