Analysis of op-amp phase margin impact o
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Andrea Pugliese; Francesco A. Amoroso; Gregorio Cappuccino; Giuseppe Cocorullo
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Article
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2010
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Elsevier Science
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English
⚖ 1011 KB
The impact of operational amplifier (op-amp) phase margin on switched-capacitor (SC) sigma-delta modulator (SDM) performance is investigated in this paper. An ad-hoc integrator settling model is developed and verified by circuit simulations performed in a commercial 0.35 mm CMOS technology. The mod