A new multipath amplifier design technique for enhancing gain without sacrificing bandwidth

A new multipath amplifier design technique for enhancing gain without sacrificing bandwidth

A new multistage multipath amplifier design technique is introduced that combines the formerly distinct phases of stage design and compensation. The result is an inherently stable n-stage amplifier whose gain-bandwidth product is not compromised as the number of stages is increased. The technique re...

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Hauptverfasser: Schlarmann, M.E., Lee, E.K.F., Geiger, R.L.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Bandwidth
Circuits
Feedback loop
Frequency
Open loop systems
Power amplifiers
Stability
Stacking
Transfer functions
Voltage
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creator Schlarmann, M.E.
Lee, E.K.F.
Geiger, R.L.
description A new multistage multipath amplifier design technique is introduced that combines the formerly distinct phases of stage design and compensation. The result is an inherently stable n-stage amplifier whose gain-bandwidth product is not compromised as the number of stages is increased. The technique relies upon (n-1) systematic pole-zero cancellations to achieve a near first-order open-loop system transfer function. The resultant amplifier architectures are attractive for realization in low-voltage processes because they accumulate gain using horizontal techniques (cascading) rather than vertical techniques (device stacking).
doi_str_mv 10.1109/ISCAS.1999.780836
format Conference Proceeding
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The result is an inherently stable n-stage amplifier whose gain-bandwidth product is not compromised as the number of stages is increased. The technique relies upon (n-1) systematic pole-zero cancellations to achieve a near first-order open-loop system transfer function. 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ispartof 1999 IEEE International Symposium on Circuits and Systems (ISCAS), 1999, Vol.2, p.610-615 vol.2
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Bandwidth
Circuits
Feedback loop
Frequency
Open loop systems
Power amplifiers
Stability
Stacking
Transfer functions
Voltage
title A new multipath amplifier design technique for enhancing gain without sacrificing bandwidth
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