Q.1
For the given circuit find the output voltage?
Questionlinear-integrated-circuits-questions-answers1.jpg
  • a) -5.625v
  • b) -3.50v
  • c) -4.375v
  • d) -3.125v
Q.2
Which type of switches are not preferable for a simple weighted resistor DAC?
  • a) Bipolar Transistor
  • b) Voltage switches
  • c) MOSFET
  • d) All of the mentioned
Q.3
The inverted R-ladder can also be operated in
  • a) Inverted mode
  • b) Current Mode
  • c) Voltage mode
  • d) Non inverted mode
Q.4
Which of among the following circuit is considered to be linear?
  • a) Weighted Resistor type DAC
  • b) R-2R ladder type DAC
  • c) Inverter R-2R ladder DAC
  • d) All of the mentioned
Q.5
Multiplying DAC uses
  • a) Varying reference voltage
  • b) Varying input voltage
  • c) Constant reference voltage
  • d) Constant input voltage
Q.6
Calculate the value of LSB and MSB of a 12-bit DAC for 10v?
  • a) LSB =7.8mv, MSB =5v
  • b) LSB =9.3mv, MSB =5v
  • c) LSB =14.3mv, MSB =5v
  • d) LSB =2.4mv, MSB =5v
Q.7
A multiplying DAC is given a reference voltage VR = Vom cos2πft. Determine the output voltage?
  • a) Vo(t) = Vom sin(2πft+180o)
  • b) Vo(t) = Vom cos(2πft+180o)
  • c) Vo(t) = Vom tan(2πft+180o)
  • d) Vo(t) = Vom sec(2πft+180o)
Q.8
Multiplying digital to analog converters are used in
  • a) All of the mentioned
  • b) Digitally programmable filter
  • c) Digitally programmable oscillator
  • d) Digitally controlled audio attenuator
Q.9
A 10-bit D/A converter have an output range from 0-9v. Calculate the output voltage produced when the input binary number is 1110001010.
  • a) ±7.96v
  • b) -7.96v
  • c) 7.96v
  • d) None of the mentioned
Q.10
The basic step of a 8-bit DAC is 12.4mv.If the binary inputrepresents 0v. Determine the output, if the input is 101101111?
  • a) 1.36v
  • b) 2.27v
  • c) 5.45v
  • d) None of the mentioned
0 h : 0 m : 1 s