Q.1.
For the given circuit find the output voltage?
- 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