search
person

1 Answer

Flash ADC is the fastest analogue to digital converter (ADC). But it have low resolution and it required lots of comparators which makes it expensive .

thumb_up_alt 0 like thumb_down_alt 0 dislike

Related questions

Description : Which is the fastest type of analogue to digital converter?

Answer : Flash converter is the fastest type of analogue to digital converter (ADC).

Description : Which type of ADC gives high resolution?

Answer : Sigma Delta, successive approximation and integrating type analogue to digital converter gives very high resolution but they have slower speed.

Description : Number of comparators required for an 8 bit flash ADC is: (1) 8 (2) 16 (3) 255 (4) 256

Answer : Number of comparators required for an 8 bit flash ADC is: 255

Description : The ADC having highest conversion speed is (A) Dual-slope ADC (B) Successive approximation ADC (C) Flash ADC (D) Servo ADC

Answer : The ADC having highest conVersion speed is Flash ADC

Description :

Answer : ADC-Amplifier interface: In most data acquisition system analog to digital converter (ADC) is interfaced with the amplifier. There are different interface architectural schemes. Operational ... . The interaction between analog to digital converter and amplifier affects the system performance.

Description : Describe the various blocks and their functions in pipelined ADC architecture.

Description :

Integrating or Dual Slope ADC

Answer : Operation: At the start of measurement the counter is reset to zero. So output of flip-flop is zero. This is applied to the switch control. The switch control now connects input voltage (Vin) to ... Then the data from counter is passed to the digital readout for display purpose.

Description : List the types of ADCs. Explain working principle of any one type of ADC.

Answer : Types : 1. Successive approximation type A/D converter or Potentiometric type 2.Voltage to time or ramp type A/D converter 3.Voltage to frequency or integrating type A/D converter 4.Dual ... analog voltage and reference voltage are converted to ramp signals of different slopes by the integrator.

Description : The number of comparators required in a 4 bit comparator type ADC is (A) 16 (B) 15 (C) 17 (D) 12

Answer : The number of comparators required in a 4 bit comparator type ADC is 15

Description : A flash type ADC uses  A) Counter B) Op—amps C) An integrator D) Flip flop

Description : Compare Dual slope DVM and SAR type DVM.

Answer : Sr no Dual slope DVM SAR type DVM 1 It is highly accurate It is moderately accurate 2 Cost is high It is inexpensive 3 Two comparator is used One comparator is used ... resolution Good resolution 5 Slow speed High speed 6 Less Error More error

Description : operation of ramp type DVM.

Answer : This is given to an input comparator which will compare two signals and generates the output. One input to the input comparator is from the input and another input is from the ramp. This input voltage and ... ground and output is given. This output will stop the flow of purchase from clock

Description : operation of half wave rectifier type AC Voltmeter.

Answer :  Half-wave Rectifier Voltmeter The d'Arsonval meter movement only responds to the average or dc value of the current through the moving coil. In order to measure alternating ... ) input voltage signal alternating signal needs to be rectified first by using diode rectifier to produce 

Description : The operation of a ramp type Digital Voltmeter is based on the principle of (A) Voltage-to-current conversion. (B) Voltage-to-time conversion. (C) Current-to-time conversion. (D) Current-to-frequency conversion.

Answer : The operation of a ramp type Digital Voltmeter is based on the principle of Voltage-to-time conversion.

Description : ECL is the fastest of all logic families. High Speed in ECL is possible because transistors are used in difference amplifier configuration, in which they are never driven into ............... (1) Race condition (2) Saturation (3) Delay (4) High impedance

Answer : Answer: 2  Explanation: Emitter-coupled logic (ECL) is the fastest of all logic families and therefore is used in applications where very high speed is essential. High speeds have become ... configuration, in which they are never driven into saturation and thereby the storage time is eliminated.

Description : Engineers of which of the following countries have developed the world’s fastest car Venom GT with a top speed of 435 kilometres per hour? (1) USA (2) South Korea (3) Japan (4) Germany

Answer : USA

Description : The Indian Supercomputer built by CRL, Pune which ranked fourth fastest in the world and most powerful in Asia is called (1) Virgo (2) Param (3) EKA (4) SAGA

Answer : EKA

Description : Which of the following ADC has highest accuracy ?  (a) Successive approximation type (b) Flash or parallel type (c) Single slope integration type (d) Dual slope integration type

Answer : Which of the following ADC has highest accuracy ?  (a) Successive approximation type (b) Flash or parallel type (c) Single slope integration type (d) Dual slope integration type

Description : The fastest-running terrestrial animal is: w) cheetah x) lion y) man z) jaguar

Answer : ANSWER: W -- CHEETAH

Description : The Hawk moth (Sphinx) is the worlds fastest flying insect attaining speed of over 50 kph

Description : Fingernails grow nearly 4 times faster than toenails. If you notice that you’re trimming your fingernails much more frequently than your toenails you’re not just imagining it. The nails that get the most exposure and are used most frequently grow the fastest. On average, nails on both the toes and fingers grow about one-tenth of an inch each month.

Description : The fastest growing nail is on the middle finger. And the nail on the middle finger of your dominant hand will grow the fastest of all. Why is not entirely known, but nail growth is related to the length of the finger, with the longest fingers growing nails the fastest and shortest the slowest.

Description : The fastest, costlier and relatively small form of storage managed by computer system hardware is : (1) Disk (2) Flash Memory (3) Main memory (4) Cache

Answer : Cache

Description : Among the following materials sound travels fastest in (1) Steel (2) Air (3) Vacuum (4) Water

Answer : Steel

Description : What is the fastest way to concat strings in ASP.NET ? What should you do?  (1) Write code that uses the Append method of the StringBuilder object. (2) Write code that uses the Substring method of the String object. (3) Write code that uses the Concat method of the String object. (4) Write code that uses the plus-sign (+) operator to concatenate the strings. 

Description : The fastest logic family among the below given ones is  A) TTL B) ECL C) CMOS D) I 2 L

Description : Is this possible for 4-bit converter if yes then how to calculate the parameters?

Description : State features of ADC 0808.

Answer : 1. Easy to interface with all Microprocessors or works Stand alone. 2. Eight channel 8-bit ADC module. 3. Can measure up to 8 Analog values. 4. On chip Clock not available, external Oscillator ... (Clock). 5. Digital output various from 0 to 255, operating power is 15mW, conversion time 100us.

Description : State important specification parameters of ADC

Answer : Accuracy Resolution Linearity Conversion time Settling time stability

Description : Define ADC and DAC. Write two applications of each.

Answer : ADC An analog to digital converter (ADC), converts any analog signal into quantifiable data, which makes it easier to process and store, as well as more accurate and reliable by ... signal, hence any analog circuit can work with digital system Application - Microcontroller, washing machine

Description :  If the range of an analog transducer is 0 to 10 V, then for a resolution of 5 mV, the bits of ADC will be _____.

Answer :  If the range of an analog transducer is 0 to 10 V, then for a resolution of 5 mV, the bits of ADC will be 11.

Description :  The slowest ADC among the following is : (A) Flash type (B) Successive approximation type (C) Integrating type (D) Counting type

Description : An eight bit digital data 10101100 is fed to an ADC. The reference voltage is +10V. The analog output voltage will be:  (1) 1.05V (2) 6.74V (3) 10.10V (4) 5.15V

Answer : An eight bit digital data 10101100 is fed to an ADC. The reference voltage is +10V. The analog output voltage will be: 6.74V.

Description : A 12-bit ADC is operating with a lus clock period and total conversion time is seen to be 14us always. The ADC must be of the type  a. Flash type b. Counting type c. Integrating type d. Successive approximation type

Description : For an ADC, full scale output voltage is about 10 V.For a resolution of about 9.78mV, number of bits required is  A) 6 B) 8 C) 10 D) 12

Description : In 8 bit successive approximation ADC, clock frequency is 1MHz and reference voltage is 10 V.Conversion time in µS for 5 V input is  A) 4 B) 8 C) 10 D) None of these 

Description : What is essential for a successive approximation Nbit ADC?  (A) 2N clock pulses for conversion, an up-down counter and a DAC. (B) N clock pulses for conversion, a binary counter and a comparator. (C) 2N clock pulses for conversion and a binary counter only. (D) N clock pulses for conversion, an up-down counter and a DAC. 

Description : What is Analog to Digital Converter (ADC) ?

Answer : Analog to Digital Converter (ADC)  Analog quantity may be voltage, temperature, sound, speed, audio etc. it is information or signal. ... digital form), digital speedometer (converts analog speed into digital form) etc.

Description : Flash or Parallel ADC

Answer : Flash or Parallel ADC

Description : Explain frequency domain synthesis. Which techniques fall into the category of frequency domain synthesis?

Description : need of calibration and explain the procedure to calibrate the instrument.

Answer : Need of calibration: Every measuring device degrades over time due to normal wear and tear. These changes can be caused by various reasons such as electric or mechanical shock or a hazardous manufacturing ... different magnitude are used to calculate the resistance based on ohm's law.

Description : block diagram of logic analyzer.

Answer : A logic analyzer can be triggered on a complicated sequence of digital events, then capture a large amount of digital data from the system under test (SUT).When logic analysers first came ... Once the data are captured, they can be displayed several ways, from the simple) to the complex 

Description : operation of DSO with block diagram.

Answer : The input is amplified and attenuated with input amplifiers. The output of the input signal amplifiers feeds an analog to digital converter (ADC). There are numbers of ADC available. But the selection of ADC ... view the display on the CRT, the data from memory is reconstructed in analog form.

Description : sketch time period measurement by CRO.

Answer : Horizontal sweep is turned ON and the display appealing on the screen is adjusted by varying different control knobs provided on the front panel of CRO, till the signal is suitably displayed ... Where m=Number of division in one complete cycle n=Setting of time base =Time/Division

Description :  operation of whetstone bridge. 

Answer : A Wheatstone bridge is widely used to measure the electrical resistance. This circuit is built with two known resistors, one unknown resistor and one variable resistor connected in the form of bridge. ... using a Wheatstone Bridge the unknown electrical resistance value can easily measure.

Description : role of the series resistance connected in PMMC movement.

Answer : A PMMC Instrument can be used as voltmeter by just connecting a series resistance with the moving coil. This series resistance is called Voltmeter Multiplier. This combination of moving coil and ... current whose voltage is to be measured. Ideally the resistance of voltmeter should be infinite

Description : different types of errors occurs in measurement.

Answer : Generally errors are classified into three types: systematic errors, random errors and blunders. 1) Gross Errors 2) Random Errors 3) Systematic Errors Instrumental Errors Environmental ... to wrong observations or reading in the instruments particularly in case of energy meter reading. 

Description : tern null as it applies to bridge measurement.

Answer : Null measurements balance voltages so that there is no current flowing through the measuring device and, therefore, no alteration of the circuit being measured. Null measurements are generally more ... the use of standard voltmeters and ammeters, and they still have limits to their precision.

Description : application of CRO.

Answer : Applications of CRO: 1) Voltage measurement. 2) Current measurement. 3) Measurement of phase difference. 4) Measurement of phase. 5) Measurement of frequency. 6) Measurement of inductance. ... in various circuits. 17) For checking transistor. 18) It can measure short time interval.

Description : In a sample-and-hold circuit, the aperture time is (A) time required following a sample (B) time required for the switch to open (C) transition time interval between sample and hold (D) time from the hold command to the opening of the switch 

← Prev Question Next Question →
editAsk a Question
...