Digital Signal Processing EXAM with QUESTIONS
and 100% Correct Answers
A binary-weighted-input digital-to-analog converter has a feedback resistor, Rf, of 12 k. If 50 uA
of current is through the resistor, voltage out of the circuit is ________.
A. 0.6 V
B. -0.6 V
C. 0.1 V
D. -0.1 V - ✔✔B
The resolution of a 6-bit DAC is ________.
A. 63%
B. 64%
C. 15.9%
D. 1.59% - ✔✔D
Which type of ADC quantizes the analog signal into a stream of bits whose amount corresponds
to the signal level?
A. Successive approximation
B. Sigma-delta
C. Dual-slope
D. None of the above - ✔✔B
, A binary-weighted-input digital-to-analog converter has an input resistor of 100 k. If the resistor
is connected to a 5 V source, current through the resistor is ________.
A. 50 mA
B. 50 uA
C. 5 mA
D. 500 uA - ✔✔B
In troubleshooting a DAC, we check its performance characteristics, such as ________.
A. nonmonotonicity
B. differential nonlinearity
C. low and high gain
D. all of the above - ✔✔D
In a digital reproduction of an analog curve, accuracy can be increased by ________.
A. sampling the curve more often
B. sampling the curve less often
C. decreasing the number of bits used to represent each sampled value
D. all of the above - ✔✔A
In a 4-bit R/2R ladder digital-to-analog converter, because of negative feedback, the
operational amplifier keeps the inverting (minus) input near ________.
A. 5 volts
B. zero volts
C. a voltage determined by the binary weighted input
and 100% Correct Answers
A binary-weighted-input digital-to-analog converter has a feedback resistor, Rf, of 12 k. If 50 uA
of current is through the resistor, voltage out of the circuit is ________.
A. 0.6 V
B. -0.6 V
C. 0.1 V
D. -0.1 V - ✔✔B
The resolution of a 6-bit DAC is ________.
A. 63%
B. 64%
C. 15.9%
D. 1.59% - ✔✔D
Which type of ADC quantizes the analog signal into a stream of bits whose amount corresponds
to the signal level?
A. Successive approximation
B. Sigma-delta
C. Dual-slope
D. None of the above - ✔✔B
, A binary-weighted-input digital-to-analog converter has an input resistor of 100 k. If the resistor
is connected to a 5 V source, current through the resistor is ________.
A. 50 mA
B. 50 uA
C. 5 mA
D. 500 uA - ✔✔B
In troubleshooting a DAC, we check its performance characteristics, such as ________.
A. nonmonotonicity
B. differential nonlinearity
C. low and high gain
D. all of the above - ✔✔D
In a digital reproduction of an analog curve, accuracy can be increased by ________.
A. sampling the curve more often
B. sampling the curve less often
C. decreasing the number of bits used to represent each sampled value
D. all of the above - ✔✔A
In a 4-bit R/2R ladder digital-to-analog converter, because of negative feedback, the
operational amplifier keeps the inverting (minus) input near ________.
A. 5 volts
B. zero volts
C. a voltage determined by the binary weighted input
