An A-to-D converter in which one sub-circuit is a D-to-A converter is

Extended parallel type A/D converter

Successive approximation A/D converter

Extended parallel type A/D converter

Directions: It consists of two statements, one labelled as the ‘Statement (I)’ and the other as ‘Statement (II)’. Examine these two statements carefully and select the answers to these items using the codes given below:Statement (I):Flash analog-to-digital conversion is the fastest but an expensive method for designing ADCs.Statement (II):Flash analog-to-digital converters are employed on very high speed digital acquisition systems.

Statement (I) is true but Statement (II) is false

Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)

Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)

Statement (I) is true but Statement (II) is false

Statement (I) is false but Statement (II) is true

Match List I with List-II and select the correct answer using the code given below the lists: List I List IIA.Flash converter ADC1.Integrating typeB.Successive approximation ADC2.Fast conversionC.Counter ramp ADC3.Maximum conversion clock periods = Number of bitsD.Dual slope ADC4.Uses a DAC in its feedback path

A – 1, B – 3, C – 4, D - 2

A – 2, B – 3, C – 4, D - 1

A – 1, B – 3, C – 4, D - 2

A – 2, B – 4, C – 3, D - 1

A – 1, B – 4, C – 3, D - 2

Among the following four, the slowest ADC (analog-to-digital converter) is

parallel-comparator (flash) type

Dual slope integration type Analog-to-Digital converters provide

Poor rejection of power supply hum

Higher speeds compared to all other types of A / D converters

Very good accuracy without putting extreme requirements on component stability

Poor rejection of power supply hum

Better resolution compared to all other types of A / D converters for the same number of bits

In which of the following types of A/D converter does the conversion time almost double for every bit added to the device?

Single-slope integrating type A/D converter

Successive approximation type A/D converter

Directions:The following question consist of two statements, one labelled as ‘Statement (I)’ and the other as ‘Statement (II)’. You are to examine these two statements carefully and select the answers to these items using the code given below:Statement (I): Dual-slope A/D converter is the most preferred A/D conversion approach in digital multimeters.Statement (II): Dual-slope A/D converter provides high accuracy in A/D conversion, while at the same time suppressing the hum effect on the input signal.Code

Both Statement (I and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)

Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)

Both Statement (I and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)

Statement (I) is true but Statement (II) is false

Statement (I) is false but Statement (II) is true

A 2-bit flash Analog to Digital Converter (ADC) is given below. The input is \(0 \le {V_{IN}} \le \;3\) Volts. The expression for the LSB of the output \({B_0}\) as a Boolean function of \({X_2},\;{X_1},\) and \({X_0}\) is

\(\overline {{X_0}} \left[ {\overline {{X_2} \oplus {X_1}} } \right]\)

\({X_0}\left[ {\overline {{X_2} \oplus {X_1}} } \right]\)

\(\overline {{X_0}} \left[ {\overline {{X_2} \oplus {X_1}} } \right]\)

\({X_0}\left[ {{X_2} \oplus {X_1}} \right]\)

\({\bar X_0}\left[ {{X_2} \oplus {X_1}} \right]\)

In dual slope type of ADCs, an input hold time is _____

Higher than that of flash type ADCs

For a 4-bit Flash type Analog to Digital Convertor (ADC) with full scale input voltage range “V”, which of the following statement(s) is/are true ?

The ADC requires 15 comparators.

The ADC requires one 4 to 2 priority encoder and 4 comparators.

A change in the input voltage by V/16 will always flip MSB of the output.

A change in the input voltage by V/16 will always flip the LSB of the output.

151 + Mcqs in Converters in Power Electronics Page 1 McqOptions

1.	An A-to-D converter in which one sub-circuit is a D-to-A converter is
A.	Parallel A/D converter
B.	Dual slope A/D converter
C.	Successive approximation A/D converter
D.	Extended parallel type A/D converter
Answer» D. Extended parallel type A/D converter

Discussion

2.	For a 5-bit R-2R ladder D/A converter which has digital input of 10101, the analog output value is (Assume 0 = 0 V and 1 = + 10 V, Rf = 3R)
A.	-3.32 V
B.	-4.32
C.	-19.68
D.	-7.48
Answer» D. -7.48

Discussion

3.	Analog-to-digital converter with the minimum number of bits that will convert analog input signals in the range of 0–5 V to an accuracy of 10 mV is
A.	6
B.	9
C.	12
D.	15
Answer» C. 12

Discussion

4.	Match List I with List IIList IList IIA. Simplest type of ADC1. Flash – type ADCB. Fastest ADC2. dual – slope type ADCC. Slowest ADC3. counter – type ADCD. Most widely used ADC4. Successive – approximation type ADCChoose the correct answer from the options given below:
A.	A - 3, B - 1, C - 2, D - 4
B.	A - 2, B - 4, C - 1, D - 3
C.	A - 4, B - 2, C - 3, D - 1
D.	A - 3, B - 4, C - 2, D - 1
Answer» B. A - 2, B - 4, C - 1, D - 3

Discussion

5.	Consider the following Analog to Digital Converters:Counter type ADC: ADual slope ADC: BSAR type ADC: CFlash ADC: DThe correct order of conversion time (T) of the ADCs shown above is:
A.	TA < TB < TD< TC
B.	TD < TC< TA< TB
C.	TA < TB< TC< TD
D.	TD < TC< TB< TA
Answer» C. TA < TB< TC< TD

Discussion

6.	In a 4-bit R-2R ladder type digital-to-analog convertor with RF = R and VR= 5V, where RF and R are the feedback and input resistances respectively to realize the gain of the inverting amplifier using an op-amp, the resolution and full-scale output respectively are
A.	-0.31 V and -4.7 V
B.	+0.31 V and -4.7 V
C.	-0.31 V and + 4.7 V
D.	+0.31 V and + 4.7 V
Answer» E.

Discussion

7.	An analog transducer with a 0 – 10 V input is able to distinguish a charge of 10 mV in its input signal. What is the number of bits of an A/D converter in binary code so that the digital output has almost the same resolution as the transducer?
A.	8
B.	10
C.	12
D.	4
Answer» C. 12

Discussion

8.	Match the elements of List I and List IIList I(DVM)List III(Characteristic)a) Ramp-typei) Automatic zero correctionb) Dual-slope converterii) Linear ramp voltage rises from 0V to the level of input voltagec) Stair-case rampiii) Binary regressiond) Successive Approximationiv) Internally generated staircase ramp voltage Choose the correct option
A.	a-iv, b-ii, c-iii, d-i
B.	a-ii, b-i, c-iv, d-iii
C.	a-i, b-iii, c-ii, d-iv
D.	a-iii, b-iv, c-i, d-ii
Answer» C. a-i, b-iii, c-ii, d-iv

Discussion

9.	Directions: It consists of two statements, one labelled as the ‘Statement (I)’ and the other as ‘Statement (II)’. Examine these two statements carefully and select the answers to these items using the codes given below:Statement (I):Flash analog-to-digital conversion is the fastest but an expensive method for designing ADCs.Statement (II):Flash analog-to-digital converters are employed on very high speed digital acquisition systems.
A.	Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)
B.	Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)
C.	Statement (I) is true but Statement (II) is false
D.	Statement (I) is false but Statement (II) is true
Answer» C. Statement (I) is true but Statement (II) is false

Discussion

10.	A 5 bit ladder has a digital input of 11010. Assuming that 0 corresponds to 0 V and 1 corresponds to +10 V, its output voltage will be:
A.	+ 6.5 V
B.	– 6.5 V
C.	– 8.125 V
D.	+ 8.125 V
Answer» E.

Discussion

11.	Dual-slope integration type Analog-to-Digital converters provide :1. Higher speeds compared to all other types of A/D converters.2. Very good accuracy without putting extreme requirements on component stability.3. Good rejection of power supply hum.4. Better resolution compared to all other types of A/D converters for the same number of bits.
A.	2 and 3 only
B.	3 and 4 only
C.	4 and 1 only
D.	1, 2, 3 and 4
Answer» B. 3 and 4 only

Discussion

12.	Match List I with List-II and select the correct answer using the code given below the lists: List I List IIA.Flash converter ADC1.Integrating typeB.Successive approximation ADC2.Fast conversionC.Counter ramp ADC3.Maximum conversion clock periods = Number of bitsD.Dual slope ADC4.Uses a DAC in its feedback path
A.	A – 2, B – 3, C – 4, D - 1
B.	A – 1, B – 3, C – 4, D - 2
C.	A – 2, B – 4, C – 3, D - 1
D.	A – 1, B – 4, C – 3, D - 2
Answer» B. A – 1, B – 3, C – 4, D - 2

Discussion

13.	An 8-bit DAC produces Vout = 0.05 V for a digital input of 00000001. The full scale output will be nearly
A.	12.8 V
B.	17.8 V
C.	22.8 V
D.	27.8 V
Answer» B. 17.8 V

Discussion

14.	A temperature in the range of -40° C to 55° C is to be measured with a resolution of 0.1° C. The minimum number of ADC bits required to get a matching dynamic range of the temperature sensor is
A.	8
B.	10
C.	12
D.	14
Answer» C. 12

Discussion

15.	An 8-bit successive approximation A-to-D converter is driven by a 2 MHz clock. Its conversion time is
A.	18 μs
B.	16 μs
C.	8 μs
D.	4 μs
Answer» E.

Discussion

16.	In an N bit flash ADC, the analog voltage is fed simultaneously to 2
A.	1 megasamples per second
B.	6 megasamples per second
C.	64 megasamples per second
D.	256 megasamples per second
Answer» B. 6 megasamples per second

Discussion

17.	Consider the following statements for an N-bit DACs :1. R-2R ladder type is based on dual slope integration.2. R-2R requires resistors of large spread in values.3. 12-2R requires roughly 2N resistors.4. R-2R requires roughly N number of resistors.Which of these statements are correct?
A.	3 only
B.	1 only
C.	1 and 3
D.	2 and 4
Answer» B. 1 only

Discussion

18.	Among the following four, the slowest ADC (analog-to-digital converter) is
A.	parallel-comparator (flash) type
B.	Successive approximation type
C.	Integrating type
D.	Counting type
Answer» D. Counting type

Discussion

19.	How would a binary number 0010 be represented by a 4-bit binary word, if the range of voltage is 0 to 10 V?
A.	0.666 V
B.	1.333 V
C.	0.333 V
D.	2.000 V
Answer» C. 0.333 V

Discussion

20.	Analog inputs are converted to digital outputs using op-amps as comparators. Assuming a 5-bit digital output, the number of comparators required would be
A.	32
B.	31
C.	64
D.	63
Answer» C. 64

Discussion

21.	An ADC has a total conversion time of 200 μs. What is the highest frequency that its analog input should be allowed to contain?
A.	2.5 kHz
B.	25 kHz
C.	250 kHz
D.	0.25 kHz
Answer» B. 25 kHz

Discussion

22.	A 12-bit ADC is operating with a 1 us clock period and total conversion time is seen to be 14 us always. The ADC must be of the type
A.	Flash type
B.	Counting type
C.	Integrating type
D.	Successive approximation type
Answer» E.

Discussion

23.	Dual slope integration type Analog-to-Digital converters provide
A.	Higher speeds compared to all other types of A / D converters
B.	Very good accuracy without putting extreme requirements on component stability
C.	Poor rejection of power supply hum
D.	Better resolution compared to all other types of A / D converters for the same number of bits
Answer» C. Poor rejection of power supply hum

Discussion

24.	A dual slope Analog to Digital converter1. Responds very fast.2. Has better accuracy.3. Requires an accurate and stable dc source.4. Requires a buffer at the input side.
A.	1 is not correct
B.	2 and 3 are correct
C.	3 and 4 are correct
D.	1, 2, 3 and 4 are correct
Answer» B. 2 and 3 are correct

Discussion

25.	A D/A converter has 5V full-scale input voltage and an accuracy of ± 0.2%. The maximum error for any output voltage will be
A.	5 mV
B.	10 mV
C.	20 mV
D.	1 mV
Answer» C. 20 mV

Discussion

26.	A 10 bit A/D converter is used to digitize an analog signal in the 0 to 5 V range. The maximum peak to peak ripple voltage that can be allowed in the DC supply voltage is, nearly:
A.	100 mV
B.	50 mV
C.	25 mV
D.	5.0 mV
Answer» E.

Discussion

27.	An analog voltage of 3.41 V is converted into 8-bit digital form by an A/D converter with a reference voltage of 5 V. The digital output is
A.	1001 1001
B.	1111 0001
C.	1011 0111
D.	1010 1110
Answer» E.

Discussion

28.	Consider the above block diagram of a successive approximation A/D converter. Match List 1 with List 2 and select the correct answer using the code given below the lists:List 1(Block)List 2(Name) A. 1. Comparator B. 2. D/A converter C. 3. Successive approximations register D. 4. Output port
A.	A- 1, B - 1, C - 2, D - 3
B.	A- 3, B - 1, C - 2, D - 4
C.	A- 4, B - 2, C - 1, D - 3
D.	A- 3, B - 2, C - 1, D - 4
Answer» D. A- 3, B - 2, C - 1, D - 4

Discussion

29.	Maximum value of signal to noise ratio of an 8 bit ADC with an I/P range of 10 V will be
A.	50 dB
B.	43.8 dB
C.	48.9 dB
D.	49.8 dB
Answer» E.

Discussion

30.	A-bit R/2R digital-to-analog (DAC) converter has a reference of 3 volts. For a digital input code of “0110” what would be the equivalent analog output in volts?
A.	0.1125 V
B.	1.125 V
C.	0.2250 V
D.	-1.125 V
Answer» E.

Discussion

31.	Assume worst case SNR of a 10 bit ADC is 57 dB. If the resolution is increased by 2 bits, the resulting SNR will be approximately
A.	67 dB
B.	69 dB
C.	45 dB
D.	74 dB
Answer» C. 45 dB

Discussion

32.	In a 4-bit weighted-resistor DAC, the resistor value corresponding to LSB is 32 kΩ. Then the resistance corresponding to MSB will be
A.	32 kΩ
B.	16 kΩ
C.	8 kΩ
D.	4 kΩ
Answer» E.

Discussion

33.	A dual-slope analog to digital converter uses an N-bit counter. When the input signal V, is being integrated, the counter is allowed to count up to the value
A.	Equal to 2N - 2
B.	Equal to 2N - 1
C.	Proportional Va
D.	Inversely proportional to Va
Answer» C. Proportional Va

Discussion

34.	A 10 bit A/D converter is used in a DMM. The maximum peak to ripple voltage allowed in the dc supply voltage for a measurement range of 0 to 5 V is
A.	100 mV
B.	25 mV
C.	5 mV
D.	50 mV
Answer» D. 50 mV

Discussion

35.	In which of the following types of A/D converter does the conversion time almost double for every bit added to the device?
A.	Counter type A/D converter
B.	Tracking type A/D converter
C.	Single-slope integrating type A/D converter
D.	Successive approximation type A/D converter
Answer» B. Tracking type A/D converter

Discussion

36.	A 10-bit DAC provides an analog output which has a maximum value of 10.23 volts. Resolution of the DAC is
A.	10 mV
B.	15 mV
C.	20 mV
D.	40 mV
Answer» B. 15 mV

Discussion

37.	How many comparators would a 12-bit flash ADC require?
A.	2512
B.	3095
C.	4095
D.	4000
Answer» D. 4000

Discussion

38.	A linear ramp ADC uses a 10-bit counting register and a 15 kHz clock frequency. The register output is 1111111111 when the input voltage is 100 mV. The required ramp rate of- change and the ADC conversion time is nearly
A.	1.5 V/s and 75 ms
B.	2.5 V/s and 90 ms
C.	1.5 V/s and 90 ins
D.	2.5 V/s and 75 ms
Answer» B. 2.5 V/s and 90 ms

Discussion

39.	A dual-slope integrating type of A/D converter has an integrating capacitor of 0.1 μF and a resistance of 100 kΩ. If the reference voltage is 2 V, and the output of the integrator is not to exceed 10 V, the value of maximum time the reference voltage can be integrated is(1) 10 ms(2) 50 ms(3) 50 μs(4) 10 μs
A.	1
B.	2
C.	3
D.	4
Answer» C. 3

Discussion

40.	A Dual slope ADC has C = 0.34 nanofarad and R = 1 KΩ has charging and discharging time for some voltage of 12 ns and 9 ns respectively. The reference Voltage is 2.5 V. What will be the peak voltage reached by triangular wave during charging?
A.	0.066 V
B.	7.0004 V
C.	6.0984 V
D.	0.2347 V
Answer» B. 7.0004 V

Discussion

41.	A 8-bit A/D converter is used over a span of zero to 2.56 V. The binary representation of 1.0 V signal is
A.	011 001 00
B.	011 100 01
C.	101 001 01
D.	101 000 10
Answer» B. 011 100 01

Discussion

42.	Directions:The following question consist of two statements, one labelled as ‘Statement (I)’ and the other as ‘Statement (II)’. You are to examine these two statements carefully and select the answers to these items using the code given below:Statement (I): Dual-slope A/D converter is the most preferred A/D conversion approach in digital multimeters.Statement (II): Dual-slope A/D converter provides high accuracy in A/D conversion, while at the same time suppressing the hum effect on the input signal.Code
A.	Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)
B.	Both Statement (I and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)
C.	Statement (I) is true but Statement (II) is false
D.	Statement (I) is false but Statement (II) is true
Answer» B. Both Statement (I and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)

Discussion

43.	Find the resolution of a 10-bit AD converter for an input range of 10 V.
A.	97.7 mV
B.	9.77 mV
C.	0.977 mV
D.	977 mV
Answer» C. 0.977 mV

Discussion

44.	A 2-bit flash Analog to Digital Converter (ADC) is given below. The input is \(0 \le {V_{IN}} \le \;3\) Volts. The expression for the LSB of the output \({B_0}\) as a Boolean function of \({X_2},\;{X_1},\) and \({X_0}\) is
A.	\({X_0}\left[ {\overline {{X_2} \oplus {X_1}} } \right]\)
B.	\(\overline {{X_0}} \left[ {\overline {{X_2} \oplus {X_1}} } \right]\)
C.	\({X_0}\left[ {{X_2} \oplus {X_1}} \right]\)
D.	\({\bar X_0}\left[ {{X_2} \oplus {X_1}} \right]\)
Answer» B. \(\overline {{X_0}} \left[ {\overline {{X_2} \oplus {X_1}} } \right]\)

Discussion

45.	A 10-bit DAC has a step size of 10 mV. What is its Full scale O/P voltage and the percentage resolution?
A.	10.24 V, 0.2%
B.	10.23 V, 0.5%
C.	10.23 V, 1%
D.	10.24 V, 0.1%
Answer» D. 10.24 V, 0.1%

Discussion

46.	A n-bit Analog to Digital converter (ADC) is required to convert an analog input in the range 0-5 V dc to an accuracy of 5 mV. What is the value of n?
A.	8
B.	10
C.	12
D.	9
Answer» C. 12

Discussion

47.	In dual slope type of ADCs, an input hold time is _____
A.	Almost zero
B.	Higher than that of flash type ADCs
C.	Longest
D.	All of the above
Answer» C. Longest

Discussion

48.	6 bit DAC is applied input 010110. The converted analog is ______V. (LOW = 0V, HIGH = +5V)
A.	3.44 V
B.	1.72 V
C.	0.833 V
D.	0.417 V
Answer» C. 0.833 V

Discussion

49.	For a 4-bit Flash type Analog to Digital Convertor (ADC) with full scale input voltage range “V”, which of the following statement(s) is/are true ?
A.	The ADC requires 15 comparators.
B.	The ADC requires one 4 to 2 priority encoder and 4 comparators.
C.	A change in the input voltage by V/16 will always flip MSB of the output.
D.	A change in the input voltage by V/16 will always flip the LSB of the output.
Answer» E.

Discussion

50.	An 8 –bit D/A converter has step size of 20 mV. The full-scale output and the resolution will be nearly
A.	5.1 V and 0.3%
B.	4.6 V and 0.4%
C.	5.1 V and 0.4%
D.	4.6 V and 0.3%
Answer» D. 4.6 V and 0.3%

Discussion

Explore topic-wise MCQs in Power Electronics.

An A-to-D converter in which one sub-circuit is a D-to-A converter is

For a 5-bit R-2R ladder D/A converter which has digital input of 10101, the analog output value is (Assume 0 = 0 V and 1 = + 10 V, Rf = 3R)

Analog-to-digital converter with the minimum number of bits that will convert analog input signals in the range of 0–5 V to an accuracy of 10 mV is

Match List I with List IIList IList IIA. Simplest type of ADC1. Flash – type ADCB. Fastest ADC2. dual – slope type ADCC. Slowest ADC3. counter – type ADCD. Most widely used ADC4. Successive – approximation type ADCChoose the correct answer from the options given below:

Consider the following Analog to Digital Converters:Counter type ADC: ADual slope ADC: BSAR type ADC: CFlash ADC: DThe correct order of conversion time (T) of the ADCs shown above is:

In a 4-bit R-2R ladder type digital-to-analog convertor with RF = R and VR= 5V, where RF and R are the feedback and input resistances respectively to realize the gain of the inverting amplifier using an op-amp, the resolution and full-scale output respectively are

An analog transducer with a 0 – 10 V input is able to distinguish a charge of 10 mV in its input signal. What is the number of bits of an A/D converter in binary code so that the digital output has almost the same resolution as the transducer?

A 5 bit ladder has a digital input of 11010. Assuming that 0 corresponds to 0 V and 1 corresponds to +10 V, its output voltage will be:

An 8-bit DAC produces Vout = 0.05 V for a digital input of 00000001. The full scale output will be nearly

A temperature in the range of -40° C to 55° C is to be measured with a resolution of 0.1° C. The minimum number of ADC bits required to get a matching dynamic range of the temperature sensor is

An 8-bit successive approximation A-to-D converter is driven by a 2 MHz clock. Its conversion time is

In an N bit flash ADC, the analog voltage is fed simultaneously to 2

Consider the following statements for an N-bit DACs :1. R-2R ladder type is based on dual slope integration.2. R-2R requires resistors of large spread in values.3. 12-2R requires roughly 2N resistors.4. R-2R requires roughly N number of resistors.Which of these statements are correct?

Among the following four, the slowest ADC (analog-to-digital converter) is

How would a binary number 0010 be represented by a 4-bit binary word, if the range of voltage is 0 to 10 V?

Analog inputs are converted to digital outputs using op-amps as comparators. Assuming a 5-bit digital output, the number of comparators required would be

An ADC has a total conversion time of 200 μs. What is the highest frequency that its analog input should be allowed to contain?

A 12-bit ADC is operating with a 1 us clock period and total conversion time is seen to be 14 us always. The ADC must be of the type

Dual slope integration type Analog-to-Digital converters provide

A dual slope Analog to Digital converter1. Responds very fast.2. Has better accuracy.3. Requires an accurate and stable dc source.4. Requires a buffer at the input side.

A D/A converter has 5V full-scale input voltage and an accuracy of ± 0.2%. The maximum error for any output voltage will be

A 10 bit A/D converter is used to digitize an analog signal in the 0 to 5 V range. The maximum peak to peak ripple voltage that can be allowed in the DC supply voltage is, nearly:

An analog voltage of 3.41 V is converted into 8-bit digital form by an A/D converter with a reference voltage of 5 V. The digital output is

Consider the above block diagram of a successive approximation A/D converter. Match List 1 with List 2 and select the correct answer using the code given below the lists:List 1(Block)List 2(Name) A. 1. Comparator B. 2. D/A converter C. 3. Successive approximations register D. 4. Output port

Maximum value of signal to noise ratio of an 8 bit ADC with an I/P range of 10 V will be

A-bit R/2R digital-to-analog (DAC) converter has a reference of 3 volts. For a digital input code of “0110” what would be the equivalent analog output in volts?

Assume worst case SNR of a 10 bit ADC is 57 dB. If the resolution is increased by 2 bits, the resulting SNR will be approximately

In a 4-bit weighted-resistor DAC, the resistor value corresponding to LSB is 32 kΩ. Then the resistance corresponding to MSB will be

A dual-slope analog to digital converter uses an N-bit counter. When the input signal V, is being integrated, the counter is allowed to count up to the value

A 10 bit A/D converter is used in a DMM. The maximum peak to ripple voltage allowed in the dc supply voltage for a measurement range of 0 to 5 V is

In which of the following types of A/D converter does the conversion time almost double for every bit added to the device?

A 10-bit DAC provides an analog output which has a maximum value of 10.23 volts. Resolution of the DAC is

How many comparators would a 12-bit flash ADC require?

A linear ramp ADC uses a 10-bit counting register and a 15 kHz clock frequency. The register output is 1111111111 when the input voltage is 100 mV. The required ramp rate of- change and the ADC conversion time is nearly

A Dual slope ADC has C = 0.34 nanofarad and R = 1 KΩ has charging and discharging time for some voltage of 12 ns and 9 ns respectively. The reference Voltage is 2.5 V. What will be the peak voltage reached by triangular wave during charging?

A 8-bit A/D converter is used over a span of zero to 2.56 V. The binary representation of 1.0 V signal is

Find the resolution of a 10-bit AD converter for an input range of 10 V.

A 2-bit flash Analog to Digital Converter (ADC) is given below. The input is \(0 \le {V_{IN}} \le \;3\) Volts. The expression for the LSB of the output \({B_0}\) as a Boolean function of \({X_2},\;{X_1},\) and \({X_0}\) is

A 10-bit DAC has a step size of 10 mV. What is its Full scale O/P voltage and the percentage resolution?

A n-bit Analog to Digital converter (ADC) is required to convert an analog input in the range 0-5 V dc to an accuracy of 5 mV. What is the value of n?

In dual slope type of ADCs, an input hold time is _____

6 bit DAC is applied input 010110. The converted analog is ______V. (LOW = 0V, HIGH = +5V)

For a 4-bit Flash type Analog to Digital Convertor (ADC) with full scale input voltage range “V”, which of the following statement(s) is/are true ?

An 8 –bit D/A converter has step size of 20 mV. The full-scale output and the resolution will be nearly