NDLI: An improved bridge track-and-hold circuit

Content Provider	IEEE Xplore Digital Library
Author	Manolov, E.D. Popov, A.N. Tchamov, N.T.
Copyright Year	2002
Description	Author affiliation: Dept. of Electron., Tech. Univ. of Sofia, Bulgaria (Manolov, E.D.)
Abstract	The classic track-and-hold (T&H) circuits based on a diode-bridge feature known drawbacks: low-input impedance, limited slew-rate (SR) and input voltage swing, high-power consumption. To overcome those problems in this paper is proposed and analyzed a new T&H architecture. Tic diodes of the classic diode-bridge are replaced by transistors connected as emitter followers. Two buffers of unity-gain split up the bootstrap loop. PSPICE simulations with real transistor parameters demonstrate the advantages of the new circuit. The T&H waveforms of 5 MHz and 35 MHz input 2 V swing signal, sampled at 80 MHz, are shown. The results of slew-rate higher than 1400 V//spl mu/S, and power saving of above 10-20 times, compared with the conventional circuit, are obtained.
Sponsorship	IEEE Electron Devices Soc. IEEE-Solid-State Circuits Soc
Starting Page	675
Ending Page	678
File Size	201587
Page Count	4
File Format	PDF
ISBN	0780372352
DOI	10.1109/MIEL.2002.1003348
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-05-12
Publisher Place	Yugoslavia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bridge circuits Diodes Switches Impedance Voltage Circuit simulation Bandwidth Frequency Energy consumption Telecommunication switching
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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