Frequency compensation technique for low voltage three stage operational amplifier
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Dhirubhai Ambani Institute of Information and Communication Technology
Abstract
This thesis presents a new frequency compensation technique for low supply voltage three-stage operational amplifier at higher loads. It is based on the miller splitting and pole-zero cancellation using feed-forward path. To reduce the value of compensation capacitance feedback stage is added in series with the compensation capacitance. The amplifier exhibits a dc gain 72db,a gain bandwidth of 35MHz at 63 degree phase margin slew rate 1 v/sμ, a compensation capacitance 4.5pF and load capacitance 300pF while consuming 395Wμat a 1-V supply voltage.
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Keywords
Operational amplifiers, Feedback, Electronics, Low voltage integrated circuits
Citation
Kunde, Raju (2007). Frequency compensation technique for low voltage three stage operational amplifier. Dhirubhai Ambani Institute of Information and Communication Technology, ix, 54 p. (Acc.No: T00126)