Sigma Delta ADC MCQ’s

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This set of Microcontroller Multiple Choice Questions & Answers (MCQs) focuses on “Sigma Delta ADC”.

1. Sigma delta converter is a __________
a) 1 bit converter
b) 2 bit converter
c) 3 bit converter
d) 4 bit converter

2. Sigma delta converter is having good resolution.
a) yes
b) no
c) cant be said
d) depends on the conditions

3. The basic idea behind the sigma delta converter is that
a) to carry out the conversion
b) to carry out communication
c) to reduce the circuit to its simplest way possible and then carry out the conversion
d) all of the mentioned

4. Oversampling ratio is defined as the _________
a) final frequency
b) oversampling frequency
c) oversampling frequency/final frequency
d) final frequency/oversampling frequency

5. SD16_A features are controlled by _________
a) memory mapped registers
b) register mapped registers
c) data mapped registers
d) none of the mentioned

6. The filtered digital signal is then decimated to
a) reduce the rate of samples from fm to fs
b) reduce the rate of samples from fs to fm
c) increase the rate of samples from fm to fs
d) increase the rate of samples from fs to fm

7. Here the word sigma represents _________
a) subtraction
b) differentiation
c) integration
d) none of the mentioned

8. The second part of the ADC’s output is in the form of _________
a) the fast stream of single bits
b) the fast stream of multiple bits
c) the slow stream of single bits
d) the slow stream of multiple bits

9. The second part of the ADC handles purely digital signals.
a) true
b) false
c) cant be said
d) depends on the conditions

10. Decimated means _________
a) multipled by 10
b) multiplied by 100
c) divided by 10
d) divided by 100

11. The SD16 has a second-order modulator with a _________
a) sinc filter
b) sinc2 filter
c) sinc3 fiter
d) rect filter

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