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https://doi.org/10.9...arrow_drop_down
https://doi.org/10.9734/bpi/rt...
Part of book or chapter of book . 2021 . Peer-reviewed
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Study of Low-Noise Wide-Band Tuned Sziklai Pair Small-Signal Amplifier

Authors: SachchidaNand Shukla; Geetika Srivastava; Syed Shamroz Arshad;

Study of Low-Noise Wide-Band Tuned Sziklai Pair Small-Signal Amplifier

Abstract

The objective of the paper is to propose and study the modified version of NPN-driven Sziklai pair small-signal amplifier with user-defined PSpice model of unmatched BJTs. With an additional biasing resistance, the proposed amplifier generates higher amplifier current gain (12904), higher amplifier voltage gain (304.343), wider bandwidth (2.7107 MHz) and higher power gain (65.940 dB-Watt) than earlier announced commercial BJTs based NPN Sziklai pair Small-signal amplifier. It is also found capable of producing distortion-less and fair output for a 1\(\mu\)V-1.6mV range of AC input signal at 1KHz frequency. Low input and output noises along with excellent thermal stability over the operational temperature range -30oC \(\le\)T\(\le\)+50oC are the paramount features of this amplifier. Proposed amplifier is also examined with the matched pair of BJTs. An investigation of the physical analysis of frequency responses and related parameters such as the effect of additional biasing resistance RA, effect of variation of current gain factor \(\beta\), temperature dependency, noise sensitivity, phase variation, range of the different biasing resistances and capacitors and small-signal AC analysis is also being performed in detail. With the suggested modifications, the proposed amplifier may be used in analog front-end amplifiers for monitoring the bio-potential signal of the human body. Tuning performance also makes it a suitable candidate to be used in radio and TV receiver stages.

Subjects by Vocabulary

Microsoft Academic Graph classification: Physics business.industry Amplifier Bandwidth (signal processing) Electrical engineering Biasing Signal Low noise law.invention Capacitor law Sziklai pair business Voltage

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  • citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    2
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average