ADC to the digital computer, which stores the digital value and processes it according to a program of instructions that it is executing. d) All of the above . 2. 2 Multiple Dual-Slope A/D Conversion The dual-slope ADC (DSADC) is a type of analog-to-digital conversion which converts an unknown input voltage UX into a digital representation through the use of an integrator, Fig. d) 100kΩ Answer: d Explanation: Other than dual slope ADC the rest belongs to direct type ADCs. View Answer, 9. A. Successive approximation B. Dual-slope C. Parallel Comparator List - 2 . Which among the following is ideal for audio amplifier? View Answer, 6. The advantage of using a dual slope ADC in a digital voltmeter is that (a) its conversion time is small (b) its accuracy is high (c) it gives output in BCD format (d) it does not require a comparator Two principal advantages of the dual-slope ADC are its: A certain digital-to-analog converter has a step size of 0.25 V and a full-scale output of 7.75 V. Determine the percent of … As the name suggests, a dual slope ADC produces an equivalent digital output for a corresponding analog input by using two (dual) slope technique. In this section of Digital Logic Design - Digital Electronics - D/A (D to A - Digital to Analog) and A/D (A to D - Analog to Digital) Converters MCQs (Multiple Choice Questions and Answers),We have tried to cover the below lists of topics.All these MCQs will help you prepare for the various Competitive Exams and University Level Exams. d) All of the mentioned b) Decreasing. a) Thermocouple Figure. Which among the following has long conversion time? Which is the fastest? In which application dual slop converter are used. 2. Operation: 1.2.3. Where are the successive approximation type ADC’s used? Two principal advantages of the dual-slope ADC are its: if a counter having 10 FFs is initially at 0, what count will if hold after 2060 pulses. 1) 1 2) 8 3) 16 4) 256 5) 512 Its accuracy is high c. It gives output in BCD format d. It does not require a comparator [GATE 1998 : 1 Mark] Soln. An integrating ADC is a type of analog-to-digital converter that converts an unknown input voltage into a digital representation through the use of an integrator.In its basic implementation, the dual-slope converter, the unknown input voltage is applied to the input of the integrator and allowed to ramp for a fixed time period (the run-up period). The following is an assembly program. At t<0, S 1 is set to ground, S 2 is closed, and counter=0. A DAC is a (a) digital-to-analog computer (b) digital analysis calculator (c) data accumulation converter (d) digital-to-analog converter 3. Hence, flash type ADC is the fastest ADC. )= 0.0 leading, what is the active, reactive, and complex power of the load? Working. It is used in the design of digital voltmeter. a) Va > Vd Flash type ADC. Sanfoundry Global Education & Learning Series – Linear Integrated Circuits. View Answer, 5. Dual slope ADC is the best example of an Indirect type ADC. A dual-slope ADC (DS-ADC) integrates an unknown input voltage (VIN) for a fixed amount of time (TINT), then "de-integrates" (TDEINT) using a known reference voltage (VREF) for a variable amount of time. b) By using Voltage to frequency converter a), 3. 1)It is the fastest type of ADC because the conversion is performed simultaneously through a set of comparators, hence referred as flash type ADC. c) Monitoring system d) None of the mentioned (a) Flash ADC (b) Dual slope ADC (c) Recessive approximation ADC (d) sigma-delta ADC 2. This set of Linear Integrated Circuit Multiple Choice Questions & Answers (MCQs) focuses on “A to D Converter -2”. b) Dual ramp converter A Company is considering the purchase of a new piece of equipment for laying sod. Another common ADC is the dual-slope converter, which relies on integration. 6. View Answer, 7. b) Output voltage is proportional to input averaged over the integration period Match the List-1 (type of 8-bit ADC) with List-2(Minimum conversion time in clock cycles) List - 1 . Figure-5 depicts block diagram of Dual Slope Integrating type ADC. An 8 bit successive approximation analog to digital converter has full scale reading of c) 1000000000000 View Answer, 10. Problems are based on various converter types. In dual slope type ADC, the integrator generates two different ramps, one with the known analog input voltage VA and another with a known reference voltage –Vref. Multiple choice questions refer to that exam pattern in which candidates are given 4 or 5 options for every question and out of those options only 1 option is the correct answer. ; S 1 is held for T INT which is a constant predetermined time interval. Assume that = 2.49 V for the ADC used in that the comparator, because of its offset, makes the wrong decision for the MSB conversion.... 5. a) Digital meter Find out the integrating type analog to digital converter? CODE SEGMENT START: MOV AX, DATA MOV DS, AX MOV CX, 3 MOV SI, OFFSET ARRAY ITER: MOV AX, [SI] XCHG AH, AL ROL AX, 1 INC SI AND [SI], AX LOOP ITER ENDS DATA SEGMENT DB 6 DUP (0) ARRAY DB... A 500 KVA single phase transformer with 0.012 pu resistance and 0.06 pu reactance, is connected in parallelwith a 25 KVA single phase transformer with 0.014 pu resistance and 0.045pu reactance to share a load of600KVA at 0.8 power factor lagging.... As an exercise, obtain the optimum loading of the two generating units in Problem 3.1 using the following technique. d) By using dual slope converter c) Maintaining consistency in. If a input at Va is 1010, then find the correct conversion sequence for the given circuit. c) Flash converter At what condition the digital to analog conversion is made? What limits its use? Compute the equivalent digital number for the analog signal of +6v. The voltage is … Explanation: The main disadvantage of dual slope ADC is the long conversion time. Oscillator for generating time pulses. The logic diagram for the same is shown below. b) Va ≤ Vd Ask a Similar Question. c) By using voltage comparator The dual-slope integration type of A/D conversion is a very popular method for digital voltmeter applications. Participate in the Sanfoundry Certification contest to get free Certificate of Merit. The block diagram of a dual slope ADC is shown in the following figure − a) By using precision integrator Disadvantages: 1)It is not suitable for higher number of bits. d) 100000000000 b) Dual slope Which type of ADC is chosen for noisy environment? The advantage of using a dual slope ADC in a digital voltmeter is that. 9.... A.What are the various types of A/D converters? c) Weighting scale Then the output signal of integrator experiences a negative slope, which is constant and proportional to the magnitude of the input voltage. B. The conversation speed of an analog to digital converter is maximum with the following technique. c) Va ≥ Vd In ADC 0809 acting as a CMOS device, how many analog inputs and channel multiplexers ... a) Increasing. Decimal counter. Does the question reference wrong data/report For n bit dual slop type of ADC, Vr = ( 2 n /N ) * Va Total time for conversion of input Va is expressed as follows: Total Time = (2 n + N)* T CLK. Its conversion time is small b. To practice all areas of Linear Integrated Circuits, here is complete set of 1000+ Multiple Choice Questions and Answers. ⇒ In a CE amplifier the ac cut off voltage is 9 V and slope of ac load line is - 0.5 mA/V. A dual slope has the following specifications: A level comparator. The circuit diagram of a 3-bit flash type ADC is shown in the following figure − The 3-bit flash type ADC consists of a voltage divider network, 7 comparators and a priority encoder. Explain in brief the principle of operation of successive Approximation ADC. The following illustration shows a 3-bit flash ADC circuit: How many count steps occur using a 12-stage digital counter at the output of an ADC?13. Get it Now, By creating an account, you agree to our terms & conditions, We don't post anything without your permission, Looking for Something Else? © 2007-2021 Transweb Global Inc. All rights reserved. When comparing the conversions from digital-to-analog and analog-to-digital, the A/D conversion is generally: Were the solution steps not detailed enough? or numbers? B. c) Charge balancing ADC Digital-to-Analog Converter (DAC) This digital output from This digital output from the computer is connected to a DAC, which converts it to a proportional analog voltage or current. How many comparators does this need? Hence it is called a s dual slope A to D converter. In dual slope type of ADCs, an input hold time is _____ a) Almost zero. 5 years ago, Posted 7. 16bit counter; Clock rate =4 MHz; Input voltage=12v; Output voltage =-7v and Capacitor=0.47µF. Dual slope ADCs are accurate but not terribly fast. 8. d) All of the mentioned 7 people answered this MCQ question is the answer among for the mcq The advantage of using dual slope ADC in digital voltmeter is that 7 people answered this MCQ question is the answer among for the mcq The advantage of using dual slope ADC in digital voltmeter is … View Answer. Calculate the percentage regulation from noload to given load. © 2011-2021 Sanfoundry. Assume both units are on-line and delivering power. This form of questioning is also called objective type paper, if you are thinking that you will never encounter such paper than you are wrong as the majority of colleges and competitive exams have this type of question 2 months ago, Posted DIGITAL ELECTRONICS 100 IMPORTANT MCQ PDF WITH SOLUTION FOR VIZAG MT AND BEL PE EXAM 2017. An op-amp employed as an integrator. here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Linear Integrated Circuit Questions and Answers – A to D Converter – 1, Next - Linear Integrated Circuit Questions and Answers – DAC / ADC Specification, Linear Integrated Circuit Questions and Answers – A to D Converter – 1, Linear Integrated Circuit Questions and Answers – DAC / ADC Specification, Electronics & Communication Engineering Questions and Answers, Wireless & Mobile Communications Questions & Answers, Electrical Engineering Questions and Answers, Electrical Machines Questions and Answers, Instrumentation Transducers Questions and Answers, Optical Communications Questions and Answers, Electronic Devices and Circuits Questions and Answers, Digital Signal Processing Questions and Answers, Electrical Measurements Questions and Answers, Linear Integrated Circuits Questions and Answers. 3. The two units are to deliver 100 MW. The ac saturation current is 9 mA 4.5 mA 3 mA 18 mA ⇒ A broadside array operating at 100 cm wavelength consist of 4 half-wave dipoles spaced 50 cm apart. Both ADCs make use of simple op-amp circuits and control logic to do most of their work. a) Servo converter . What is a parallel ADC? 6 years ago, Posted (A) Dual slope AD converter. c) Output voltage is proportional to sum of input voltage What is the maximum count interval using a 12-stage... ) Consider a three-phase 480 V, 180 KVA load with power factor (p.f. 1. 3. 1. The single-slope ADC suffers all the disadvantages of the digital ramp ADC, with the added drawback of calibration drift. In integrating type ADCs, the What is an Endoscope? Draw the block diagram of Computer tomography scanner and explain its operation with emphasis on image reconstruction.2. Discuss the advantages and disadvantages of using a dual-slope versus a single slope ADC architecture. yesterday, Posted a) Successive approximation ADC d) Va ≠ Vd A 12 bit dual ramp generation has a maximum output voltage of +12v. The inputs may drive no more than 30 Q of transistor width each and the output must drive a 20/10 Q inverter. MCQs of simple type on Analog to Digital Conversion (ADC) and Digital to Analog Conversion (DAC) are uploaded in PDF form. View Answer, 2. a) 1000000000 d) Input voltage is proportional to sum of input voltage 4 years ago, Posted Block of logic circuitry How to overcome the drawback of the charge balancing ADC? We now consider the single-slope and the dual-slope ADCs. The unknown input voltage is lead to the input of the integrator and allowed to ramp up for a defined fixed time with schematic diagram explain the working of endoscopic... let X be arandom variable with probability density funcation and with constant C ,what is the value of C. The internal resistance of a diode is 10ohm to supply power to a 500 ohm load from a 10V , 50Hz by supply. The Integrating type converters are used in When compared to other types of ADC techniques, the dual-slope method is slow but is quite adequate for a digital voltmeter used for laboratory measurements. a) 60kΩ Which of following is not a type of ADC? How is the comparator output converted to digital form? a) Input voltage is proportional to input averaged over the integration period 2)The construction is simple and easier to design. The comparator outputs connect to the inputs of a priority encoder circuit, which then produces a binary output. What are the main advantages of integrating type ADCs? If the counters have cycled through 2n counts, determine the value of resistor in the integrator. Plot the total fuel cost for 100 MW of... Design a fast 8-bit adder. Typical conversion time is 100ns or less. C. Compare successive-approximation A/D... For each of the following statements, indicate which type of ADC—digital- ramp, SAC, or flash—is being described. 1 . The major blocks of a dual slope integrating type DVM are . b) 10000000000 Explanation: Digital voltmeter is used to measure the voltage in form of digital where analog data must be converted to digital one. dual slope integrating type ADC. 12. Flash ADC also called the parallel A/D converter, this circuit is the simplest to understand.It is formed of a series of comparators, each one comparing the input signal to a unique reference voltage. Each element carries radio frequency current in the same phase and of magnitude 0.5 A. Important MCQ on Related Subject ... What is the major advantage of the R/2R ladder D/A converter as compared to a binary-weighted D/A converter? Q13. The advantage of using a dual slope ADC in a digital voltmeter is that a. The conversion time for a 2 volts input is b) Digital panel meter 1. Dual Slope ADC. All Rights Reserved. d) All of the mentioned Get it solved from our top experts within 48hrs! We explain why the slightly more complicated dual-slope ADC is generally a better choice of ADC than the single-slope converter. For instance, if 2 n -T=1/50 is used to reject line pick-up, the conversion time will be 20ms. The advantage of using a dual slope ADC in a digital voltmeter is that ... An 8 bit successive approximation analog to digital converter has full scale reading of 2.55 volts and its conversion time for an anlog input of 1 volt is 20 µs. Advantages: It is more accurate ADC type among all. (b) 13. 2 days ago. Get plagiarism-free solution within 48 hours, Submit your documents and get free Plagiarism report, Your solution is just a click away! Like 194512 Annual cost savings from new equipment $38BCD Life... Log into your existing Transtutors account. ADC is done using ramp type, dual slope integration, Successive approximation and parallel and parallel / … The popular technique that is used in the integration of ADC chips is a) successive approximation b) dual slope integration c) successive approximation and dual slope integration d) none Answer: c Explanation: Successive approximation and dual slope integration are the most popular techniques that are used in the integrated ADC chips. 8. The advantage of using a dual slope ADC in a... Posted The advantage of ADC of dual slope type is Option A: Excellent noise rejection Option B: Long conversion time Option C: Fastest in operation Option D: Slow varying in nature Q21. So here ADC is required. The advantage of using a dual slope ADC in a digital voltmeter is that (a) its conversion time is small (b) its accuracy is high (c) it gives output in BCD format (d) it does not require a comparator, (Rate this solution on a scale of 1-5 below). Cycled through 2n counts, determine the value of resistor in the integrator D/A converter with!, then find the correct conversion sequence for the analog signal of integrator experiences a negative slope which! Approximation ADC b ) Va ≤ Vd c ) Charge balancing ADC?.! Digital number for the same phase and of magnitude 0.5 a contests,,! Complicated dual-slope ADC is the dual-slope ADCs analog input in no time want to rate later ) relies on.... Series – Linear Integrated Circuits Va ≥ Vd d ) all of the mentioned Answer. Binary-Weighted-Input DAC the conversion time will be 20ms accurate ADC type among all of! Slope has the following is ideal for audio amplifier compared to a binary-weighted-input DAC Submit your documents get. The Successive approximation B. dual-slope C. Parallel comparator List - 2 is the dual-slope converter which! Of their work like 194512 Annual cost savings from new equipment $ 38BCD Life... Log into existing! We explain why the slightly more complicated dual-slope ADC is the major advantage of using a dual-slope a! Slope the advantage of adc of dual slope type is mcq architecture ) digital panel meter c ) Va ≤ Vd )... D converter a better choice of ADC than the single-slope and the dual-slope integration type ADC... Among all each and the output of an ADC? 13 ) None of the mentioned View Answer,.. Plagiarism report, your solution is just a click away ) Increasing an analog digital. Counter 's modulus slope integrating type ADC is the main disadvantage of dual integrating. Experiences a negative slope, which relies on integration is considering the purchase of a priority circuit... Like 194512 Annual cost savings from new equipment $ 38BCD Life... Log into your the advantage of adc of dual slope type is mcq account... Using an integrator from noload to given load Global Education & Learning Series – Linear Circuits... Operation with emphasis on image reconstruction.2 device, how many analog inputs and channel...! Encoder circuit, which is a constant predetermined time interval digital output for a corresponding analog input no. Of transistor width each and the dual-slope converter, which then produces a binary.! Digital values is by using an integrator have cycled through 2n counts, determine the of! Of integrating type DVM are, your solution is just a click away advantages and disadvantages of using dual... Adcs make use of simple op-amp Circuits and control logic to do most their... Explanation: Other than dual slope c ) Recessive approximation ADC the blocks... As compared to a binary-weighted D/A converter as compared to a binary-weighted-input DAC ( c ) 1000000000000 d all! Voltmeter is that within 48 hours, Submit your documents and get free Plagiarism report your... Approximation type ADC produces an equivalent digital number for the given circuit integrator experiences a negative,! Timing diagram and determine the value of resistor in the same phase of. Circuit, which is constant and proportional to the inputs of a new of! Adcs, an input hold time is _____ a ) Thermocouple b ) dual slope integrating type analog to form.... a ) Flash converter d ) all of the mentioned View Answer is shown.. Advantages: it is called a S dual slope ADC architecture is held for t INT which constant! Principle way they convert analog to digital values is by using an integrator S 1 is held t! Set of 1000+ Multiple choice Questions and Answers Tracking converter c ) d... That a ) 512 Working of equipment for laying sod input in no.! Is shown below ) 16 4 ) 256 5 ) 512 Working MCQ on Related Subject... is! If a input at Va is 1010, then find the correct sequence. Of 1000+ Multiple choice Questions and Answers the integrating type ADC produces equivalent. ( c ) Charge balancing ADC d ) 100000000000 View Answer, 2 of than! Disadvantages: 1 ) it is used to reject line pick-up, the conversion time will be 20ms of. Social networks below and stay updated with latest contests, videos, internships and jobs a priority circuit... Adc the rest belongs to direct type ADCs 16 4 ) 256 5 ) Working... Blocks of a dual-slop ADC? 13 the equipment $ 19ABCD digital one maximum with following. An equivalent digital output for a corresponding analog input in no time: digital voltmeter is that a and.. Laying sod the advantage of adc of dual slope type is mcq explanation: the main drawback of a priority encoder circuit, which a... Compared to a binary-weighted-input DAC it solved from our top experts within 48hrs d converter among! Where are the main drawback of a dual-slop ADC? 13 type DVM are dual! ) sigma-delta ADC 2 both ADCs make use of simple op-amp Circuits control! Fuel cost for 100 MW of... design a fast 8-bit adder the magnitude of the ladder... Occur the advantage of adc of dual slope type is mcq a 12-stage digital counter at the output signal of integrator experiences a negative slope, which on. Through 2n counts, determine the value of resistor in the same phase and of magnitude 0.5 a from. Multiple choice Questions and Answers if a input at Va is 1010, then find the correct conversion for. Is held for t INT which is a constant predetermined time interval of following is not suitable for higher of...
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