Linear-Digital IC

What is the main function of a comparator?

• A. Amplify signals

• B. Convert digital to analog signals

• C. Compare two input voltages

• D. Store binary data

In a non-inverting comparator, what happens when the input voltage is greater than the reference voltage?

• Output goes to –VSAT

• Output goes to +VSAT

• Output stays zero

• Output becomes undefined

Which component converts binary digital signals into analog voltage?

• ADC

• Comparator

• DAC

• Oscillator

What does ADC stand for?

• Analog to Digital Converter

• Advanced Data Controller

• Analog Data Circuit

• Automatic Digital Control

In a dual-slope ADC, the analog signal is first applied to:

• A timer

• A comparator

• An integrator

• A counter

6. Which timer IC is commonly used in electronics?

• IC 4011

• IC 555

• IC 7805

• IC 4040

What type of wave is generated in astable mode of a 555 timer?

• Sine wave

• Triangle wave

• Square wave

• Sawtooth wave

The output frequency of a Voltage-Controlled Oscillator (VCO) depends on:

A. Temperature

B. Resistance

C. Input voltage

D. Output current

• B

• C

• A

• D

Which block in a Phase-Locked Loop adjusts the VCO to match input frequency?

• Counter

• Timer

• Comparator

• Phase detector

What is one purpose of an interface circuit?

• Match signal levels

• Reduce temperature

• Store energy

• Create analog signals