Successive-approximation analog to digital converter, Electrical Engineering

Assignment Help:

Successive-approximation analog to digital converter

This converter, shown in Figure, also contains a D/A converter, but the binary counter is replaced by a successive-approximation register (SAR), which makes the analog-to-digital conversion much faster. The SAR sets the MSB to 1 and all other bits to 0, after a start-of- conversion pulse. If the comparator indicates the D/A converter output to be larger than the signal

773_Successive-approximation analog to digital converter.png

to be converted, then the MSB is reset to 0 and the next bit is tried as the MSB. On the other hand, if the signal to be converted is larger than the D/A computer output, then the MSB remains 1. This procedure is repeated for each bit until the binary equivalent of the input analog signal is obtained at the end. This method requires only n clock periods, compared to the 2n clock periods needed by the counter-controlled A/D converter, where n is the number of bits required to encode the analog signal. The National ADC 0844 is a popular 8-bit A/D converter based on the SAR.


Related Discussions:- Successive-approximation analog to digital converter

Explain position servo in a radar system, Q. Explain Position servo in a ra...

Q. Explain Position servo in a radar system? Figure depicts the essential elements of a position servo system. In a radar system, an electromagnetic pulse is radiated from an a

Combinational logic circuit design, Design a circuit to enable a chemical a...

Design a circuit to enable a chemical additive to be introduced into the fluid through another inlet only when the temperature is not too cold or too hot and the fluid is above the

Superposition, advantages and disadvantaages of superposition

advantages and disadvantaages of superposition

Find the resonant frequency, Find the resonant frequency: Find the res...

Find the resonant frequency: Find the resonant frequency ω0 (or f0) for the given series RLC circuit v = Vm sin ωt = 50 sin ωt Figure Also determine the expre

Oscillator circuit with the help of block diagram, Q. Explain the condition...

Q. Explain the conditions to be satisfied for sustained oscillations in an oscillator circuit with the help of block diagram. The essential condition for sustained oscillations

Energy, Explain different stage in energy audit?

Explain different stage in energy audit?

Explain about synchronous machines, Q. Explain about Synchronous machines? ...

Q. Explain about Synchronous machines? Large ac power networks operating at a constant frequency of 60 Hz in the United States (50 Hz in Europe) rely almost exclusively on sync

PSpice Project, I would send the project file so you can take a look at it....

I would send the project file so you can take a look at it.

Determine the resonant frequency and bandwidth, Q. A gyrator is sometimes u...

Q. A gyrator is sometimes used in integrated circuits to simulate inductances. Consider the circuit of Figure consisting of a gyrator. (a) Show that the impedance as seen to the

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