Define sigma-delta analog to digital converters, Electrical Engineering

Assignment Help:

Define Sigma-Delta Analog to Digital Converters?

Sigma-Delta ADCs have the benefit of being implemented almost totally in the digital domain.  They are extremely reliable, highly stable, and very functional.  Due to their largely digital composition, they can be integrated onto similar silicon like a DSP.  Most ADCs are relies on the principle of sampling and transforming a signal directly at the sample rate; though, this needs precise component matching and low noise circuit design. 

Sigma-Delta ADCs make use of a low-resolution ADC (1-bit quantizer) with a sampling rate many times higher as compared to the Nyquist frequency.  This results in a conversion noise which is spread over a very wide bandwidth.  As the desired output bandwidth is a tiny fraction of the internal bandwidth, a filter can be utilized to remove the noise.  Mainly, the digital filter trades high bandwidth for better noise performance. 


Related Discussions:- Define sigma-delta analog to digital converters

Explain factors affecting permeability and hysterisis loss, Explain the fac...

Explain the factors affecting permeability and hysterisis loss. Factors affecting permeability and hysterisis loss: When the initial permeability is high, the hysterisis los

Calculate the total charge on the integrator, Q. Consider the dual-slope A/...

Q. Consider the dual-slope A/D converter of Figure. (a) Calculate the total charge on the integrator due to the input voltage Vin during the signal integration time T. (b) Ob

The central processing unit - stepper motor , The Central Processing Unit ...

The Central Processing Unit The  central processing  unit  is the brain of whole PLC.  The CPU  consist of a microprocessor memory  chip  and other  integrated circuits to con

Pins and signals , Pins  and Signals As  discussed  earlier that  808...

Pins  and Signals As  discussed  earlier that  8085  microprocessor  chip has 40 pins shown  various  pins  and signals of 8085  microprocessor. All  these  signals can be   c

Moving coil transducers, Note transducers  convert a physical quantity from...

Note transducers  convert a physical quantity from one  form to another.  The case below illustrates a typical moving coil meter   that   converts   a   current into a mechanical a

Show twos complement addition, Q. Can you explain Twos complement addition?...

Q. Can you explain Twos complement addition? 2's Complement Addition Two's complement addition follows the same rules as binary addition. For example, 5 + (-3)  =  2

Evaluate parameters of a bjt, Q. The parameters of a BJT are given by α = 0...

Q. The parameters of a BJT are given by α = 0.98, I CBO = 90 nA, and i C = 7.5 mA. Find β, iB, and iE.

Common source amplifier, Common Source Amplifier A common-source ampl...

Common Source Amplifier A common-source amplifier is one of three basic single-stage field-effect transistor abbreviated as FET amplifier topologies, commonly used as a volta

#speed control, explain speed control of dc motor

explain speed control of dc motor

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