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 conduct insulation resistance test, Explain conduct insulation resi...

Explain conduct insulation resistance test on 100 VA inverter used for mobile and Laptop charging sockets? Ans: The insulation resistance of the inverter shall be calculated w

Multiplexers, how to design a 32:1 multiplexer using two 16:1 multiplexers ...

how to design a 32:1 multiplexer using two 16:1 multiplexers and a 2:1 multiplexer?

Find the modulated signal in each case, Let the message signal m(t) = α cos...

Let the message signal m(t) = α cos (2πf m t) be used to either frequency-modulate or phase- modulate the carrier Ac cos(2πf c t). Find the modulated signal in each case.

Discuss about signal distortion in optical waveguides, Discuss about signal...

Discuss about signal distortion in optical waveguides Ans: The major reason for signal distortion within optical waveguide is dispersion. Dispersion of the transmitted

Logic circuits, : A farmer owns two barns; one north of a creek and the oth...

: A farmer owns two barns; one north of a creek and the other south of the creek. The farmer has a Cabbage, a Goat, and a Wolf. The Farmer needs to put each item in a barn every ni

#title. Armature winding, Why is an armature winding in d.c machine called ...

Why is an armature winding in d.c machine called closed winding.

Collector-coupled astable multivibrator, what happens when the resistors ha...

what happens when the resistors have different values

Find the equation of the circle concentric, 1. Find the slope and the y-int...

1. Find the slope and the y-intercept of the line whose equation is 5x + 6y = 7. 2. Find the equation of the line that is parallel to 2x + 5y = 7 and passes through the midpoint

Compute the pull on the plunger, Q. A sectional view of a cylindrical iron-...

Q. A sectional view of a cylindrical iron-clad plunger magnet is shown in figure. The small air gap between the sides of the plunger and the iron shell is uniform and 0.25 mm long.

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