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Zero-power current conveyor for DC stabilisation and system reset of fast current pulse amplifiers

Zero-power current conveyor for DC stabilisation and system reset of fast current pulse amplifiers

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Published

A new amplifier is presented which performs charge signal amplification from capacitive sources. The feedback network, providing DC stabilisation and continuous system reset, is made by a current conveyor based on total current reuse. This new solution allows easy tuning of the return-to-zero time constant with significantly lower noise than in conventional amplifiers with feedback resistors.

Inspec keywords: feedback amplifiers; circuit tuning; circuit stability; circuit noise; pulse amplifiers; current conveyors

Other keywords: charge signal amplification; continuous system reset; capacitive sources; return-to-zero time constant; DC stabilisation; tuning; total current reuse; zero-power current conveyor; noise reduction; feedback network; fast current pulse amplifiers

Subjects: Amplifiers; Pulse circuits

References

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      • C. Toumazou , F.J. Lidgey , D.G. Haigh . (1993) Analogue IC design: the current-mode approach.
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      • G. Bertuccio , L. Fasoli , M. Sampietro . Design criteria of low-power low-noise charge amplifiers in VLSI bipolartechnology. IEEE Trans. , 5 , 1708 - 1718
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      • Z.Y. Chang , W.M.C. Sansen . (1997) Low-noise wide-band amplifiers in bipolar and CMOS technologies.
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