Dual-ramp analog to digital converter, Electrical Engineering

Assignment Help:

Q. Dual-ramp analog to digital converter?

Figure (a) shows the block diagram of a dual-ramp (dual-slope) A/D converter. After a start-of-conversion pulse, the counter is cleared and the analog input Vin becomes the input of the ramp generator (integrator). When the output of the ramp generator Vo reaches zero, the counter starts to count. After a fixed amount of time T, as shown in Figure (b), the output of the ramp generator is proportional to the analog input signal. At the end of T, the reference voltage Vref is selected, when the integrator gives out a ramp with a positive slope. As Vo increases, the counter is incremented until Vo reaches the comparator threshold voltage of 0 V, when the counter stops being incremented again. The value of the counter becomes the binary code for the analog voltage Vin, since the number of clock pulses passing through the control logic gate for a time t is proportional to the analog signal Vin. Dual-ramp A/D converters can provide accuracy at low cost, even though the process is slow because a double clock pulse count is an inherent part of the process

942_Dual-ramp analog to digital converter.png


Related Discussions:- Dual-ramp analog to digital converter

Explain the working of depletion mosfet, Q. Explain the working of depletio...

Q. Explain the working of depletion MOSFET ? The gate voltage can control the resistance of the n-channel but as the gate is insulated from the channel, we can apply either a p

Resonance, i want to plot a system current transfer matrix element vs frequ...

i want to plot a system current transfer matrix element vs frequency curve.how can i draw it?any suggestion.

New asic design flow, There is a requirement to propose a new ASIC design f...

There is a requirement to propose a new ASIC design flow within your company, from VHDL design capture through to GDSII tape out.  It is very important that the flow includes all t

Gaussian derivatives, Gaussian derivatives Generate Gaussian kernels f...

Gaussian derivatives Generate Gaussian kernels for a given scale "sigma", and display the kernel. The size of the kernel should be floor(3*sigm)+1; (i) Write an m-file "

Function of circuit - breaker, Q. Function of circuit - breaker, difference...

Q. Function of circuit - breaker, difference between circuit breaker and 'isolator'? Ans: The function of circuit breaker is to break the electrical continuity in the event o

Explain common base configuration, Q. Explain common base configuration? ...

Q. Explain common base configuration? Common-base transistor amplifiers are so-called because the input and output voltage points share the base lead of the transistor in commo

Static v- i characteristics - power semiconductor devices, V- I Characteris...

V- I Characteristics The operation of the  diac can be explained by imagining it as two diodes connected  in series. When  applied voltage in either polarity is small ( less t

Asic based new product development project, Assume you are working for an S...

Assume you are working for an SME operating in the microelectronics sector. You are required to plan a new product development project. This is an internal project, so it does not

Definition of magnetism, Definition of  Magnetism Magnetism is explai...

Definition of  Magnetism Magnetism is explained as the force produced by charge particles (electrons) of magnet. A magnet is a material that obtained a magnetic field.

Determine l and c of the band pass filter circuit, Q. Determine L and C of ...

Q. Determine L and C of the band pass filter circuit of Figure to have a center frequency of 1 MHz and a bandwidth of 10 kHz. Also find the Q of the filter.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd