Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Delta-sigma (ΔΣ; or sigma-delta, ΣΔ) modulation and demodulation circuits
uses op-amps ia : as integrator , derivate, sum-amplifier, filtering, signal amp and comparator.
Can you specify your question.
i am also designing sigma delta adc modulator as a part of my internship project in which i designed op amp with gain over 100db (min), phase greater than 80 degrees and Bandwidth greater than 50 MHz to accommodate my input signals and took others parameters too into consideration, but i found that my designed op amp wasn't functioning properly as an integrator, so then i adjusted for parameters keeping more focus onto the bandwidth of 50 MHz & its proper functioning as an integrator. What i want to tell you is that make op amp as per your application. So don't try to design it as per books, try to design and tune it as per your application.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
