16 views
by
With the help of a neat circuit diagram explain the working principle of Digital to Analog converters.(DAC)

Your answer

Thanks for your contribution. Feel free to answer this question. Please avoid short answer. Your answer is most welcome. Be genuine.

Upload image or document:

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
Are you a robot ? (Y = Yes / N = No)
To avoid this verification in future, please log in or register.

1 Answer

0 votes
by

Digital-to-Analog Converters: 

image

D/A conversion is the process of converting a value represented in digital code such as binary or BCD into a voltage or current which is proportional to the digital value. Fig represents the symbol of a typical 4 bit D/a converter. Each of the digital inputs A,B,C and D can assume a value 0 or 1, therefore there are 24 = 16 possible combination of inputs. For each input number, D/A converter outputs a unique value of voltage. The analog output voltage Vout is proportional to the input binary number. So, Analog output = ( K *digital input) where K is proportionality factor and is constant for a given DAC. 


(Or)


image

Figure above represents a DAC using op-amp. The summing amplifier has four input resistances corresponding to four binary inputs D0,D1,D2 and D3.Switches are provided with each input. If a switch is open ,it indicates ‘0’And for closed switch it indicates ‘1’.

The output of the 4 bit DAC is : Iin = (Vref/R)(D3+2-1D2+2-2D1+2-3D0.

So the total voltage available at the output of the op-amp is the total of input voltage levels which represents the equivalent analog signals of the 4-bit digital input.

Related questions

1 answer 66 views

With the help of neat diagram, explain the method to obtain unidirectional polarity in train lighting.

asked Sep 2, 2018 by Zeeshan
2 answers 191 views

With the help of neat sketch, state working principle of rotameter. 

asked Sep 9, 2018 by Shimroz123
1 answer 16 views

With the help of neat diagram, explain the construction of current transformer. 

asked Sep 18, 2018 by Shimroz123
0 answers 50 views

Explain the leakage flux and its effect with the help of neat diagram.

asked Aug 8, 2018 by Quiz
1 answer 9 views

Explain the construction and working of a photoelectric cell with a neat diagram. 

asked Sep 4, 2018 by Shimroz123
1 answer 30 views

A 4-bit R/2R digital-to-analog (DAC) converter has a reference of 5 volts. What is the analog output for the input code 1010:  (1) 0.3125 V (2) 3.125 V (3) 0.78125 V (4) –3.125 V

asked Apr 9, 2018 in Electronics Engineering by Shimroz123
1 answer 10 views

State working principle of analog to digital and digital to analog conversion.

asked Sep 13, 2018 by Shimroz123
1 answer 37 views

Explain working of 'hot wire anemometer with the help of diagram. 

asked Sep 13, 2018 by Shimroz123
1 answer 8 views

What is solenoid valve ? Explain its working with the help of diagram.

asked Sep 2, 2018 by Shimroz123
0 answers 29 views

With the help of a schematic diagram explain how a overcurrent relay protects a line during short circuit fault. 

asked Apr 3, 2018 in Lesson 2 Generation, Transmission and Distribution of Electric Power an Overview by Shimroz123
1 answer 7 views

With neat diagram, explain the working of clip-on ammeter.

asked Sep 6, 2018 by Shimroz123
1 answer 342 views

Explain with neat diagram construction and working of Ajax Wyatt vertical core induction furnace.

asked Oct 13, 2018 in Industry Electrical Systems-II by Shimroz123
1 answer 2 views

With neat diagram explain working of Ratiometric conversion. 

asked Sep 12, 2018 by Shimroz123
1 answer 6 views

With neat diagram, explain working of capacitance level measurement.

asked Sep 9, 2018 by Shimroz123
2 answers 162 views

Explain construction & working of attraction type M.I. instrument with neat diagram.

asked Sep 5, 2018 by Shimroz123
2 answers 17 views

With neat diagram explain working of NPN transistor.

asked Sep 5, 2018 by Shimroz123
1 answer 11 views

Explain Center-tapped full wave rectifier with the help of circuit diagram and draw input output waveforms. 

asked Jul 10 in Elements of Electronics by Shimroz123
1 answer 19 views

Explain full wave bridged rectifier with the help of circuit diagram and input output waveform.

asked Sep 5, 2018 by Shimroz123
1 answer 38 views

Digital to Analog Converter (DAC)

asked Aug 9, 2017 in Electronics Engineering by Zeeshan
1 answer 20 views

With the help of neat diagrams,explain the following methods of speed control in DC series motor. i) Field diverter method. ii) Armature diverter method.

asked Sep 18, 2018 by Shimroz123
2 answers 60 views

Explain the hysteresis loop of a magnetic material with neat diagram.

asked Aug 8, 2018 by Quiz
1 answer 190 views

With neat diagram explain use of “reactive power controller” to reduce technical losses in transmission and distribution system.

asked Sep 22, 2018 in Energy Conservation And Audit by Shimroz123
1 answer 15 views

With the help of necessary sketch, explain in brief the working of brushless DC motor. 

asked Sep 15, 2018 by Shimroz123
1 answer 6 views

Describe the working principle of photodiode with proper diagram.

asked Jul 10 in Elements of Electronics by Shimroz123
1 answer 68 views

With the help of suitable diagram, explain how humidity is measured with dry and wet bulb thermometer.

asked Sep 9, 2018 by Shimroz123
0 answers 18 views

Explain space vector transformation and space vector switching with the help of diagram. What are the advantages of SVM?

asked Mar 10, 2018 in Power Electronics by Quiz
1 answer 20 views

Describe with neat circuit diagram the method of measurement of power in a High voltage, high current a.c circuit.

asked Sep 15, 2018 by Shimroz123
1 answer 15 views

With a neat sketch explain working of 1 phase dynamometer type power factor meter.

asked Sep 6, 2018 by Shimroz123
1 answer 11 views

Describe with neat diagram working of DC tacho-generator. 

asked Sep 13, 2018 by Shimroz123
2 answers 23 views

What is pyrometry? Describe working of optical pyrometer with neat diagram.

asked Sep 8, 2018 by Shimroz123
0 answers 26 views

Explain the term self induced EMF with a neat diagram.

asked Aug 8, 2018 by Quiz
1 answer 16 views

Which type of flow is measured by hot wire anemometer and describe its working principle with suitable diagram. 

asked Sep 13, 2018 by Shimroz123
3 answers 50 views

Describe working principle of ultrasonic level detector with diagram.

asked Sep 9, 2018 by Shimroz123
1 answer 111 views

Explain the construction of three phase induction motor with neat diagram.

asked Oct 25, 2018 in AC machine by Shimroz123
1 answer 2 views

Explain the operation of pneumatic cylinder with neat diagram.

asked Sep 2, 2018 by Shimroz123
1 answer 14 views

In a weighted-resistor digital-to-analog converter with 8-bit input, if the resistance corresponding to the MSB is 2K, what will be the resistance corresponding to the LSB?  (a) 250 Ω (d) 512 KΩ (c) 256 KΩ (d) 25.5 Ω

asked May 15, 2018 in Digital Instrumentation by Shimroz123
1 answer 9 views

Draw the circuit diagram of crystal oscillator and explain its working.

asked Sep 5, 2018 by Shimroz123
1 answer 19 views

With neat sketch explain working of Weston type synchroscope.

asked Sep 6, 2018 by Shimroz123
1 answer 5 views

Explain working of pressure switch with suitable diagram. State the function of differential setting in pressure switch.

asked Sep 2, 2018 by Shimroz123
1 answer 85 views

With a neat diagram, explain gas engine co-generation system.

asked Sep 23, 2018 in Energy Conservation And Audit by Shimroz123
1 answer 23 views

With a neat diagram, explain back pressure steam turbine co-generation system.

asked Sep 23, 2018 in Energy Conservation And Audit by Shimroz123
1 answer 55 views

Explain concept of capacitive type proximity switch with neat schematic diagram.

asked 1 day ago in Elements of Industrial Automation by Shimroz123
1 answer 6 views

With neat diagram explain constructional details of dynamometer type wattmeter.

asked Sep 6, 2018 by Shimroz123
1 answer 30 views

With neat diagram explain calibration of energy meter by direct loading method.

asked Sep 6, 2018 by Shimroz123
1 answer 42 views

With neat diagram explain the following terms: (i) Steam turbine co-generation system (ii) Gas turbine co-generation system

asked Sep 22, 2018 in Energy Conservation And Audit by Shimroz123
1 answer 3 views

Explain the electrolytic capacitor with neat diagram.

asked Sep 4, 2018 by Shimroz123
0 answers 42 views

Explain the basic dual slope ADC technique used in digital multimeters with its diagram and measurement cycle.

asked Mar 2, 2018 in Digital Instrumentation by Quiz
1 answer 72 views

Describe transistor as a switch with neat circuit diagram.

asked Sep 5, 2018 by Shimroz123
1 answer 488 views

Explain the principle of ON-OFF control and phase control of AC voltage controller with suitable circuit and waveforms.

asked Feb 14, 2018 in Unit 6 by Quiz

Welcome to electronics2electrical.com here you can ask questions related to electrical, electronics, mechanical, telecommunication, instrumentation, computer, mathematics, physics etc.
Be respectful to all the members. Do not copy and paste the answers from other websites which have copyright content. While asking question give full details about it.

Categories

Most popular tags

power motor dc circuit transformer voltage current used system phase resistance factor synchronous load ac energy induction electric generator series frequency between speed capacitor use electrical meter line difference control type mosfet transmission magnetic plant high single instrument bjt unit source advantages function diode and machine winding field define torque parallel amplifier supply shunt thyristor motors electricity arduino maximum time relay armature problem value on transformers types coil diagram state flow ratio material three formula starting direction theorem method emf operating efficiency digital wave microprocessor test instruments inductance loss measure operation connected signal low applications effect single-phase network temperature working constant losses different law wattmeter measuring compare controlled breaker drive device logic rc full switch flux wire resistivity disadvantages free of materials machines angle force converter conductor transistor gain open protection scr core measurement number bridge principle generators reactance circuits negative the friction iron loop short pole battery conservation steam resistors hysteresis computer using analog lines secondary station gate a rectifier inverter linear induced relays nuclear capacitance basic characteristics design direct work rotor electronics ammeter forces diesel damping rlc connection factors capacitors minimum insulation moving regulation running self systems air fault range main stability quality starter igbt eddy alternator ideal rl average 3-phase plants arc thermal error fuzzy biasing dielectric pressure balanced superposition errors copper rotation feedback impedance measured electronic electrons charge inductive transfer explain start off back curve over solar is three-phase tariff locomotive peak bias zener engineering commutator surge conductors rating universal potentiometer density permanent mechanical transducer capacity memory adc excitation two fuse pure harmonics application semiconductor inductor internal pmmc reaction welding resonance traction permeability breakers rms designed electromagnetic si generation brushes switching capacitive shaded rate 1 distribution resistor methods delta star oscillator reluctance simplification algebra 8085 boolean weston dynamometer insulating strength installation definition fuel heating earth units

8,450 questions

7,047 answers

133 comments

3,086 users

...