Analysis, modelling and optimization of a gain boosted telescopic amplifier

In this paper, a thorough analysis of a gain‐boosted telescopic amplifier (GBTA) is presented and a systematic design procedure for optimizing its time response will be given. Specifically, the GBTA closed‐loop time response will be analysed in detail and the constraints eliminating the well‐known ‘...

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Bibliographic Details
Published in:International journal of circuit theory and applications 2003-09, Vol.31 (5), p.513-528
Main Authors: Aloisi, W., Giustolisi, G., Palumbo, G.
Format: Article
Language:English
Subjects:
Amplifiers
analog circuits
Analog VLSI
Applied sciences
Circuit properties
CMOS amplifiers
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
telescopic amplifier
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Summary:In this paper, a thorough analysis of a gain‐boosted telescopic amplifier (GBTA) is presented and a systematic design procedure for optimizing its time response will be given. Specifically, the GBTA closed‐loop time response will be analysed in detail and the constraints eliminating the well‐known ‘slow settling component’ found. Subsequently, an optimization strategy based on the comparison between the GBTA time response and the time response of a pure two‐pole amplifier (referred to as the target system) will be described. This strategy allows the designer to develop a GBTA starting from the target system specifications in a simple and systematic way. The proposed procedure has been validated by means of simulations and excellent agreement found between the simulated and the expected results. Copyright © 2003 John Wiley & Sons, Ltd.
ISSN:0098-9886
1097-007X
DOI:10.1002/cta.248