Single Miller capacitor frequency compensation with nulling resistor for three‐stage amplifiers | Zendy

Cannizzaro S. O. | Zendy; Grasso A. D. | Zendy; Palumbo G. | Zendy; Pennisi S. | Zendy

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Single Miller capacitor frequency compensation with nulling resistor for three‐stage amplifiers

Author(s) -

Cannizzaro S. O.,

Grasso A. D.,

Palumbo G.,

Pennisi S.

Publication year - 2008

Publication title -

international journal of circuit theory and applications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.364

H-Index - 52

eISSN - 1097-007X

pISSN - 0098-9886

DOI - 10.1002/cta.464

Subject(s) - capacitor , frequency compensation , resistor , gain–bandwidth product , bandwidth (computing) , amplifier , compensation (psychology) , electrical engineering , electronic engineering , operational amplifier , cmos , engineering , computer science , telecommunications , voltage , psychology , psychoanalysis

A frequency compensation technique for three‐stage amplifiers is introduced. The proposed solution exploits only one Miller capacitor and a resistor in the compensation network. The straightness of the technique is used to design, using a standard CMOS 0.35‐µm process, a 1.5‐V OTA driving a 150‐pF load capacitor. The dc consumption is about 14µA at DC and a 1.8‐MHz gain–bandwidth product is obtained, providing significant improvement in both (MHzpF)/mA and ((V/µs)pF)/mA performance parameters. Copyright © 2007 John Wiley & Sons, Ltd.

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