Question 1

The most likely ADC architecture for a spectrum analyzer is:

Accepted Answer

A)  pipelined. 
B)  sigma/delta. 
C)  successive approximation. 
D)  none of the above. 
A)  pipelined. 
B)  sigma/delta. 
C)  successive approximation. 
D)  none of the above.

Question 2

Resolution is inversely proportional to a number of bits.

Accepted Answer

A) True 
 B)False

Question 3

A given 4- bit digital to analog converter has a reference voltage of 15 volts and a binary input of 0101. What is the proportionality factor?

Accepted Answer

A)  15 V 
B)  1.5 V 
C)  1 V 
D)  5 V 
A)  15 V 
B)  1.5 V 
C)  1 V 
D)  5 V

Question 4

A primary advantage of R/2R ladder DACs over binary weighted resistor DACs is the R/2R device only uses two different resistor values.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following is NOT a typical manufacturer's specification for D/A converters?

Accepted Answer

A)  settling time 
B)  offset error 
C)  reference voltage 
D)  monocity 
A)  settling time 
B)  offset error 
C)  reference voltage 
D)  monocity

Question 6

If you were designing a computer data acquisition system that required the use of analog- to- digital converters when analog data are changing at a fast rate, you would most likely select an SAC A/D converter over a digital- ramp A/D because:

Accepted Answer

A)  the SAC will enable the computer to acquire more data values in a given period of time. 
B)  the SAC is less complicated than its digital- ramp counterpart. 
A)  the SAC will enable the computer to acquire more data values in a given period of time. 
B)  the SAC is less complicated than its digital- ramp counterpart.

Question 7

Which of the following is a characteristic of a pipelined ADC employing flash ADCs in the subranging stages?

Accepted Answer

A)  It has high resolution. 
B)  It is relatively inexpensive. 
C)  It is fast. 
D)  all of the above 
A)  It has high resolution. 
B)  It is relatively inexpensive. 
C)  It is fast. 
D)  all of the above

Question 8

The output voltage or current of a transducer would normally be the input of a(n):

Accepted Answer

A)  DAC. 
B)  ADC. 
C)  Actuator. 
D)  Digital system. 
A)  DAC. 
B)  ADC. 
C)  Actuator. 
D)  Digital system.

Question 9

Simply stated, for an N- bit DAC the number of different levels will equal 2n, and the number of steps will equal 2n - 1.

Accepted Answer

A) True 
 B)False

Question 10

When comparing the conversions from digital- to- analog and analog- to- digital, the A/D conversion is generally:

Accepted Answer

A)  less complicated but more time consuming than the D/A conversion. 
B)  more complicated and more time consuming than the D/A conversion. 
C)  less complicated and less time consuming than the D/A conversion. 
D)  more complicated but less time consuming than the D/A conversion. 
A)  less complicated but more time consuming than the D/A conversion. 
B)  more complicated and more time consuming than the D/A conversion. 
C)  less complicated and less time consuming than the D/A conversion. 
D)  more complicated but less time consuming than the D/A conversion.

Question 11

A(n) 	converts a digital input to a proportional analog voltage or current.

Accepted Answer

The answer of A(n) 	converts a digital input to a...

The most likely ADC architecture for a spectrum analyzer is:

Resolution is inversely proportional to a number of bits.

A given 4- bit digital to analog converter has a reference voltage of 15 volts and a binary input of 0101. What is the proportionality factor?

A primary advantage of R/2R ladder DACs over binary weighted resistor DACs is the R/2R device only uses two different resistor values.

Which of the following is NOT a typical manufacturer's specification for D/A converters?

If you were designing a computer data acquisition system that required the use of analog- to- digital converters when analog data are changing at a fast rate, you would most likely select an SAC A/D converter over a digital- ramp A/D because:

Which of the following is a characteristic of a pipelined ADC employing flash ADCs in the subranging stages?

The output voltage or current of a transducer would normally be the input of a(n):

Simply stated, for an N- bit DAC the number of different levels will equal 2ⁿ, and the number of steps will equal 2ⁿ- 1.

When comparing the conversions from digital- to- analog and analog- to- digital, the A/D conversion is generally:

A(n) converts a digital input to a proportional analog voltage or current.

Introductory Concepts

Number Systems and Codes

Describing Logic Circuits

Combinational Logic Circuits

Flip-Flops and Related Devices

Digital Arithmetic: Operations and Circuits

Counters and Registers

Integrated-Circuit Logic Families

MSI Logic Circuits

Digital System Projects Using HDL

Memory Devices

Programmable Logic Device Architectures

Filters

Exam 11: Interfacing With the Analog World

The most likely ADC architecture for a spectrum analyzer is:

Resolution is inversely proportional to a number of bits.

A given 4- bit digital to analog converter has a reference voltage of 15 volts and a binary input of 0101. What is the proportionality factor?

A primary advantage of R/2R ladder DACs over binary weighted resistor DACs is the R/2R device only uses two different resistor values.

Which of the following is NOT a typical manufacturer's specification for D/A converters?

If you were designing a computer data acquisition system that required the use of analog- to- digital converters when analog data are changing at a fast rate, you would most likely select an SAC A/D converter over a digital- ramp A/D because:

Which of the following is a characteristic of a pipelined ADC employing flash ADCs in the subranging stages?

The output voltage or current of a transducer would normally be the input of a(n):

Simply stated, for an N- bit DAC the number of different levels will equal 2n, and the number of steps will equal 2n - 1.

When comparing the conversions from digital- to- analog and analog- to- digital, the A/D conversion is generally:

A(n) converts a digital input to a proportional analog voltage or current.

Introductory Concepts

Number Systems and Codes

Describing Logic Circuits

Combinational Logic Circuits

Flip-Flops and Related Devices

Digital Arithmetic: Operations and Circuits

Counters and Registers

Integrated-Circuit Logic Families

MSI Logic Circuits

Digital System Projects Using HDL

Memory Devices

Programmable Logic Device Architectures

Filters

Simply stated, for an N- bit DAC the number of different levels will equal 2ⁿ, and the number of steps will equal 2ⁿ- 1.