Digital Electronics
Dual slope ADC has R = 1 KΩ and C = 0.22 nanofarad has charging and discharge times for some voltage is 9 ns and 3 ns respectively. The reference Voltage is 2.2 V. What is the peak voltage reached by triangular wave during charging?

 30 mV.
 900 mV.
 300 mV.
 90 mV.

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Digital Electronics
Consider the representation of six-bit numbers by two’s complement, one’s complement, or by sign and magnitude: In which representation is there overflow from the addition of the integers 011000 and 011000?

Two’s complement only
Two’s complement and one’s complement only
Sign and magnitude and one’s complement only
All three representations

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