1.3) In a digital representation of voltages using an 8-bit binary code, how man

Question

1.3) In a digital representation of voltages using an 8-bit binary code, how many values can be defined? a)14 b) 32 ) 64 ) 256 14) The input signals of an (12 bits) ADC are from-Volts to +?Volt, the range of the converters is? a) 5 b) +4V c) 3V 15) What is the resolution of a (12 bits ADC are from -2Volts to +1Volt)? a) 4095 b) 0.244 mV c) 0.544 mA d) 4000 16) The precision of a (12 bits) ADC are from -2Volts to +1 Volt, is? a) 4095 b) 0.244 mV c) 0.244 mA d) 4095 e) 0.7326mV 17) The output of a (12 bits) ADC are from -2Volts to +1Volt, is SA12? What was the input voltage? a) 0.672 V b) 0.672 mV c) 6.72V d) 0.244 mV e) -0.114v 18) The input signals of an (12 bits) ADC are from -2Volts to +1Volt. What is the value the minimal input signal variation that this ADC cans detect? a) 0.120V b) -2V c) 0.224 mv d) 1.99V

Explanation / Answer

13)

Answer: (d) 256

Explanation: No of representation= 28 = 256

14)

Answer: (d) 3V

Explanation:

Range = (-2~1) = 1-(-2) = 3V

15)

Answer: (a) 4095

Explanation: Resolution= 212-1= 4095

16)

Answer: (e) 0.7326 mV

Explanation: Precision = 3/(212-1) = 0.7326mV

#NOTE: As per chegg guidelines only the first four question are answered.

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