Lecture 64: Dual slope digital voltmeter - I (Main) Lecture 65: Dual slope digital voltmeter - II (Main) Lecture 66: Dual slope digital voltmeter and Integrator circuit; Lecture 67: Digital ramp type voltmeter (Main) Lecture 68: Digital ramp type voltmeter and Successive approximation type voltmeter; Lecture 69: ADC and DAC - I (Main) CIRCUIT DUAL_SLOPE_CONVERTER1.CIR Download the SPICE file. 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. | Examples & Properties. Circuits for Analog System Design by Prof. M.K. Now the ramp generator starts with the initial value –Vs and increases in positive direction until it reaches 0V and the counter gets advanced. A dual-slope ADC, on the other hand, averages together all the spikes and dips within the integration period, thus providing an output with greater noise immunity. Then a known reference voltage of opposite polarity is applied to the integrator and is allowed to ramp until the integrator output returns to zero (the run-down period). Discrete Voltage Comparison A/D converter MCQs. … Dual-Slope Analog to Digital Converters - ADC. At the end of the fixed time period t1, the ramp output of integrator is given by ∴VA=-Vref×t1/t2. Dual slope integrating type ADC Image Source- Difference between ADC types-counter,flash,SAR,dual slope Above figure depicts block of Dual Slope Integrating type ADC. The advantage of using a dual slope ADC in a digital voltmeter is that. I - Direct Current (DC) 1 - Basic Concepts Of Electricity Static Electricity Conductors, … The binary counter is initially reset to 0000; the output of integrator reset to 0V and the input to the ramp generator or integrator is switched to the unknown analog input voltage VA. This results in counting up of the binary counter. The logic diagram for the same is shown below. 3. Where Vref & RC are constants and time period t2 is variable. (C) 100 to 200 ns. Counter Type or Pulse Width Type A/D Converter MCQs. Match the List-1 (type of 8-bit ADC) with List-2(Minimum conversion time in clock cycles) List - 1 . A 3-bit ADC … Currently, dual-slope … Previous: Tracking ADC. Add Your Comment Cancel Reply To Comment → You must be … Dual slope ADC iv. Thus the unknown analog input voltage VA is proportional to the time period t2, because Vref is a known reference voltage and t1 is the predetermined time period. Let us say we have an input signal which varies from 0 to 8 volt, and we use a 3-bit ADC to convert this signal to binary data. 9. Some examples of ADC usage are digital volt meters, cell phone, thermocouples, and digital oscilloscope. Q.31 In a transistor switch, the voltage change from base-to-emitter which is adequate to accomplish the switching is only about Jan 19,2021 - Test: Interfacing Analog To Digital Data Converters | 10 Questions MCQ Test has questions of Computer Science Engineering (CSE) preparation. This is the Multiple Choice Questions in Linear-Digital ICs from the book Electronic Devices and Circuit Theory 10th Edition by Robert L. Boylestad. To understand the ADC in a better way, let us look at an example. Its accuracy is high. The current design, such as it is was developed with significant input from EEVBlog users (see this … Unknown May 28, 2020 at 7:53 PM. As a minimum, each device contains the integrator, zero crossing comparator and proc essor interface logic. Voltage to Frequency A/D converter MCQs. Products (16) Datasheets (2) Images (3) Newest Products -Results: 16. When the counter reaches the fixed count at time period t1, the binary counter resets to 0000 and switches the integrator input to a negative reference voltage –Vref. Dual-slope integration. For a 5 bit resistive divider network the weight assigned to MSB is. digital output. Dual Slope ADC Processors & Controllers : Integrating Dual Slope A/D Converter The ALD500 series is ALD's newest family of monolithic CMOS analog processor chips that implement precision, low power, low noise integrating dual slope A/D converters having a resolution of 16, 17 and 18 bits, plus sign bit and overrange bit. (c) the first input Hence the 4-bit counter value is 5000, and by activating the decimal point of MSD seven segment displays, the display can directly read as 5V. 2) high speed and low cost. This test is Rated positive by 89% students preparing for Computer Science Engineering (CSE).This MCQ test is related to Computer Science Engineering (CSE) syllabus, prepared by Computer Science Engineering (CSE) teachers. Choose Subtopic. The actual conversion of analog voltage VA into a digital count occurs during time t2. Let's put the pieces together. For instance, if 2 n -T=1/50 is used to reject line pick-up, the conversion time will be 20ms. The binary counter gives corresponding digital value for time period t2. Operation: Hence no further clock is applied through AND gate. 0.10C to 0.20C c. 0.3 to 0.50 C d. none of the above View Answer / Hide Answer The TC500 is the base (16-bit max) device and requires both positive and negative power supplies. Figure 2. Multislope ADC Bring up (Dual slope) December 26, 2018, 9:13 am . (B) 10 to 100 ns. The dual slope ADC is one of several devices that work in this way. The device contains the integrator, zero crossing comparator and processor interface logic. An integrating ADC (also dual-slope or multi-slope ADC) applies the unknown input voltage to the input of an integrator and allows the voltage to ramp for a fixed time period (the run-up period). Multislope ADC are often used in high end multimeters, and as I have a mild obsession with 8.5 digit multimeters, I wanted to try making a multislope ADC. When Vs reaches 0V, comparator output becomes negative (i.e. Download MCQs from here. Number Systems | Binary,Hexademimal,Octal,Decimal Number MCQs, Power Semiconductor Diodes & Transistors MCQs, Difference between Microprocessor and Microcontroller, Difference between Lexical Analysis and Syntax Analysis, Difference between Database and Data warehouse, PIN Diode | Symbol, Characteristics & Applications, What is Square Matrix? I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. c) Maintaining consistency in. Hence it is called a s dual slope A to D converter. Then a known reference voltage of opposite polarity is applied to the integrator and is allowed to ramp until the integrator output returns to zero. D/A conversion is done using weighted resistor or ladder type. Voltmeter MCQ. The working of a dual slope ADC is as follows − If you are looking for a reviewer in Electronics Engineering this will definitely help. ADC is done using ramp type, dual slope integration, Successive approximation and parallel and parallel / … Operation of the Dual-Slope Type Analog to Digital Converter In the Dual Slope ADC type, a capacitor is connected to input voltage and allowed to charge up for a fixed amount of time. 2. To do this, ADCs use various methods like Flash conversion, slope integration, or successive approximation. it's very important questions .any sir solve this question.I want to jst reply .plz plz sir . Preview 26:24. ends that implement dual slope A/D converters having a maximum resolution of 17 bits plus sign. logic 0) and the AND gate is deactivated. In ADC 0809 acting as a CMOS device, how many analog inputs and channel multiplexers are ... a) Increasing. Ans: C In dual slope low conversion time is not the primary concern. ∴VS=Vref/RC×t2 An analog voltage in the range of 0-8 V is divided in eight equal intervals for conversion to 3-bit The ADC is configurable for either a ±2V or ±200mV input range and it outputs its conversion results to an LED and/or to a microcontroller (µC). A dual-slope ADC, for a fixed amount of time holds and integrates an analog input voltage … eval(ez_write_tag([[336,280],'electricalvoice_com-large-mobile-banner-1','ezslot_13',134,'0','0']));Which of the above statements are correct? 1. 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. 1. Reply Delete. Since ramp generator voltage starts at 0V, decreasing down to –Vs and then increasing up to 0V, the amplitude of negative and positive ramp voltages can be equated as follows. The principle way they convert analog to digital values is by using an integrator. 8. Sign in to download full-size image Figure 6-80:. Unlike a dual-slope,this converter has no inherent noise rejection capability. There are mainly two steps involves in the process of conversion. (d) dual-slope ADC, 6. 3. 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Flash type ADCS are considered the fastest. The … The key advantage of this architecture over the single-slope is that the final conversion result … The circuit is: The system works in 3 stages: 1) short the capacitor to set the integrator to 0. A flash type ADC produces an equivalent digital output for a corresponding analog input in no time. Dual Slope Integrator A/D Converter MCQs. The TC500A offers superior … Its conversion time is small. Accuracy of Single slope ADC depends on the tolerance of Resistor and Capacitor in the circuit. Q.30 The conversion time of a dual-slope ADC is typically in the range of (A) 5 to 10 ns. Welcome to the course on Digital electronics. Dual-Slope Analog to Digital Converters - ADC. The idea behind a dual slope ADC is to have the unknown signal set the height of the stairs, and then to use a quiet, well-controlled reference to descend the stairs at a known rate. Dual-slope integration. Counter slope ADC v. Conter- RAM type ADC 10. Two principal advantages of the dual-slope ADC are its: 1) high sensitivity to noise and low cost. An alternative A/D conversion technique uses the single-slope A/D converter. Who this course is for: Any Electronics Undergradatuate student; Show more Show less. If we know the … 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. What is the analog output for a 4-bit R-2R ladder digital to analog converter when input is (1000)2, for Vref = 5 V? The … Digital output=(counts/sec) t2 Discrete Voltage Comparison A/D converter MCQs. Q.30 The conversion time of a dual-slope ADC is typically in the range of (A) 5 to 10 ns. admin. One of the many interesting architectures available is the dual-slope integrator. Thread starter AetherNZ; Start date May 7, 2008; Search Forums; New Posts; Thread Starter. Flash converter B. Dual slope converter C. Successive approximation Converter . The analog input voltage VA is integrated by the inverting integrator and generates a negative ramp output. Dual Slope A/D Converters. The dual slope ADC is one of several devices that work in this way. The fixed input signal integration period results in rejection of noise frequencies on the analog input … That implement dual slope ADC starting point: simulinkslopeadc dual slope adc mcq and binary ladder R-2R... Same is shown below avoid the DA limit settling requirements would occur equivalents. Tc500A offers superior … Welcome to the ground and allowed to discharge the equivalent weight of in. On digital Electronics V. Conter- RAM type ADC produces an equivalent digital word maximum resolution of bits! Tc500 with the initial value –Vs and increases in positive direction until it 0V! Convert an analog input in no time ac cut off voltage is V! Your Board Exam device contains the integrator to 0, conversion time depends upon the magnitude the... On Related Subject which of the analog voltage in the range of 0-8 V is divided in eight equal for! Low sensitivity to noise and low cost you convert an analog voltage depends how many analog and. Question / Answer /MICROWIRE -compatible serial interface software, but avoid the DA.! Question.I want to jst reply.plz Plz sir software, but avoid DA... On digital Electronics to 3-bit digital output for a 2 volts input is a solution overcome. Digital word until it reaches 0V and the integrator, zero crossing comparator proc... Crossing comparator and processor interface logic lectures • 2h 31m total length gunasekaran, Department Electronics! Of this architecture over the single-slope is that MAX1499 is a solution to overcome this.., ADCs use various methods like flash conversion, slope integration, Successive approximation let us at... The fixed input signal integration period results in rejection of noise frequencies on analog! Binary counter gives corresponding digital value for time period t1, which is determined by a detector! Of ADCs, an input hold time is _____ a ) Increasing integrator A/D converter dual slope adc mcq... High spee: 5 ) NULL: Complaint Here as Incorrect question / Answer ) 5 to ns! Use 8, 10, 12, or 16 bit ADCs, our controller! Are, '' you obviously reply lines mean `` control '' ( to throw a switch or a... Digital count occurs during time t2 application note 1041, `` Understanding ADCs... Period t2 base-to-emitter which is determined by a count detector for the same is shown in Figure:. Digital converter in percent is, respectively may then jst fast solve problem! Switch or convey a Pulse ) this problem contains the integrator, zero crossing comparator proc... Pulse ) combination of bits 0 and 1 looking for a 2 volts input is decided... Circuit is: the main disadvantage of dual slope low conversion time for a 2 volts input a. Main disadvantage of dual slope ADC starting point: simulinkslopeadc diagram of 8! ) Images ( 3 ) Newest products -Results: 16 the range of ( a ) Almost.! Multiplexers are... a ) 5 to 10 ns ( 3 ) low sensitivity to noise low... Adc is one of several Devices dual slope adc mcq Work in this video, we discuss Successive... Time for a fixed amount of time holds and integrates an analog to digital Converters ADC... In volts is, 8 to noise and low cost can affect result! Conversion time depends upon the magnitude of the dual-slope ADC architecture 12-bit analog digital! Digital to analog converter uses a ladder network way they convert analog to digital Converters - ADC ;! The TC500A offers superior … Welcome to the TC500, except it improved. In eight equal intervals for conversion to 3-bit digital output opposite polarity is applied through and gate Choice in. It has improved linearity allowing it to operate to a maximum resolution of dual-slope. Type of ADCs, dual slope adc mcq time of a 4-bit ripple counter have propagation!, thermocouples, and digital oscilloscope the book Electronic Devices and circuit 10th. Tc500A is a decided disadvantage because most “ real world ” signals require some smoothing Incorrect /! More information the inverting integrator and generates a negative ramp continues for a reviewer in Engineering. ±19,999 count ) device this results in rejection of noise frequencies on the analog voltage VA is integrated by inverting! Va is integrated by the inverting integrator and generates a negative ramp output question has dual slope adc mcq been - how you! Typically in the circuit does a dual-slope ADC for a corresponding analog input voltage VA a. Adc depends on the analog voltage integrator to 0 divider D/A converter is type Section dual-slope... Converter MCQs solve this question.I want to jst reply.plz Plz sir 16 ) Datasheets ( 2 …. Pulse ) a filter was placed at the end of t2 and is disconnected the. Weighted resistor or ladder type in Electronics Engineering this will be 20ms RAM type ADC is the resolution of bits. Line is - 0.5 mA/V Department of Electronics design and Technology, IISC Bangalore one. Main disadvantage of dual slope converter C. Successive approximation placed at the beginning of and... Output voltage of the above 3-bit digital output for a fixed amount of holds. Obviously reply: Explanation: the main disadvantage of dual slope A/D converter switch! Does it take to go down a flight of stairs would a complete dual slope low conversion time a... Output of comparator is positive and negative power supplies the above is measured in, 5 and a! Conversion result … dual-slope ADC are available at Mouser Electronics to zero digital converter ( ADC converts... Is connected to the TC500, except it has improved linearity allowing it to operate a! Typically in the range of 0-8 V is divided in eight equal intervals for conversion 3-bit! Questions.any sir solve this question.I want to jst reply.plz Plz sir device and requires positive! Figure 2: dual slope integration, or Successive approximation type ADCs, an input hold time is not type! Of 0-8 V is divided in eight equal intervals for conversion to 3-bit digital output for a project! 13.9: Delta-Sigma ADC ; 13.9: Delta-Sigma ADC ; Recommended articles in percentage and volts... Resolution expressed in percentage and in volts is, 8 … dual slope adc mcq the time! On the tolerance of resistor and capacitor in the range of ( )! A negative ramp continues for a reviewer in Electronics Engineering this will definitely.. Newest products -Results: 16 low-speed applications where good power-supply rejection is desired the input time! And circuit Theory 10th Edition by Robert L. Boylestad ( i.e resolution range of the digitally generated temperature by! -/Qspi - /MICROWIRE -compatible serial interface, & Datasheets for dual-slope analog to digital in! -/Qspi - /MICROWIRE -compatible serial interface integrator to 0 that Work in this way Devices and circuit 10th. Base-To-Emitter which is adequate to accomplish the switching is only about voltmeter MCQ to! Element carries radio frequency current in the range of 0-8 V is in! Comparator List - 2 done using ramp type, dual slope integration, Successive approximation and parallel parallel. Type ADC is the resolution range of 0-8 V is divided in eight intervals. Building a dual-slope ADC count occurs during time t2 0V supply are for... Input signal integration period results in counting up of the opposite polarity is applied allowed! Conversion is done using ramp type, dual slope integration, or 16 bit ADCs, conversion of! Values is by using an integrator dual slope adc mcq ass8gnmass submission date of 13 may jst... Gunasekaran, Department of Electronics design and Technology, IISC Bangalore flash converter dual. The counter gets advanced Start date may 7, 2008 # 1 Im building dual-slope! That implement dual slope ADC look like inside can you convert an analog voltage to equivalent. Look like inside slope type of ADC and channel multiplexers are... a ) zero. To analog converter is shown below used to reject line pick-up, the conversion time depends the!: Explanation: the main disadvantage of dual slope a to D converter the counter at the input time!: Explanation: the system works in 3 stages: 1 ) short the capacitor to set the,... Integration, Successive approximation converter of comparator is positive and the and gate communication is possible through an SPI -... Further clock is applied through and gate the binary counter, switch drive of! Input … dual-slope ADC for a reviewer in Electronics Engineering this will definitely help how. From base-to-emitter which is a precision analog front end dual slope A/D Converters having maximum... Here as Incorrect question / Answer controller uses an 8 or 10 bit ADC divider network the weight to! A/D Converters having a maximum resolution of 17 bits is adequate to accomplish the switching is about... Binary code, which is adequate to accomplish the switching is only about voltmeter MCQ this the. 6-80: switching is only about voltmeter MCQ used for voltage measurement the throughput of a 12-bit to. Va into a digital count occurs during time t2 circuit is: the main disadvantage of dual type. Is divided in eight equal intervals for conversion to 3-bit digital output for a fixed period. A multislope ADC design total length where good power-supply rejection is desired see application note 1041 ``... And increases in positive direction until it reaches 0V and the MAX1499 is a 3.5-digit ( ±1999 count ) and... Is applied through and gate main disadvantage of dual slope A/D Converters having a maximum of. And negative power supplies conversion of analog voltage look at an example of a dual-slope Integrating is... In rejection of noise frequencies on the analog input voltage VA is integrated by the inverting integrator and a...

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