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Digital Electronics

Digital Electronics
A gate is inhibited when its inhibit input is at logic 1. The gate is

 OR
 AND
 NAND
 none of these

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Digital Electronics
The simplified block diagram of a 10-bit A/D converter of dual slope integrator type is shown in figure. The 10-bit counter at the output is clocked by a 1 Mhz clock. Assuming negligible timing overhead for the control logic, the maximum frequency of the analog signal that can be converted using this A/D converted is approximately .

 500 Hz.
 250 Hz.
  1 KHz.
 2 KHz.

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Digital Electronics
What logic function is produced by adding inverters to the inputs of an AND gate?

 X-OR
 OR
 NAND
 NOR

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Digital Electronics
The number of comparators in a parallel conversion type 8-bit analog to digital converter is

  255.
 16.
  8.
 256.

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Digital Electronics
When will be the output of an exclusive-OR gate is HIGH ?

 All inputs are HIGH
 All inputs are LOW
 The inputs are different
 The inputs are equal

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Digital Electronics
The binary number 10101 is equivalent to decimal number ___________.

12
21
27
19

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