IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences 2008 E91-A(2):476-482; doi:10.1093/ietfec/e91-a.2.476

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Copyright © 2008 The Institute of Electronics, Information and Communication Engineers

Special Section on Analog Circuit Techniques and Related Topics -- Papers

Reduction of Bootstrapped Switch Area Consumption Using Pre-Charge Phase

Retdian A. NICODIMUS¹, Shigetaka TAKAGI¹ and Nobuo FUJII²

¹ The authors are with the Department of Communications and Integrated Systems, Graduate School of Science and Engineering, Tokyo Institute of Technology, Tokyo, 152-8552 Japan. E-mail: nico{at}ec.ss.titech.ac.jp, ² The author is with the Department of Physical Electronics, Graduate School of Science and Engineering, Tokyo Institute of Technology, Tokyo, 152-8552 Japan.

This paper discusses the input range limitation problem in a track-and-hold circuit and the compensation method using a bootstrapped switch. A bootstrapped switch with an additional control circuit is proposed to compensate charge loss in conventional bootstrapped switch circuit. Simulation results using 0.18-µm CMOS process parameters show that the proposed circuit reduces the bootstrap capacitance down to 25% for the conventional circuit.

Key Words: track-and-hold circuit, bootstrapped switch

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Manuscript received July 2, 2007. Manuscript revised September 14, 2007.

Reference

[1] B. Razavi, Design of Analog CMOS Integrated Circuits, McGraww-Hill, New York 2001.

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[3] T. Lee and C. Lu, "A 1.5-V 50-MHz pseudodifferential CMOS sample-and-hold circuit with low hold pedestal," IEEE Trans. Circuits Syst. I, vol.52, no.9, pp.1752–1757, Sept. 2005.

[4] C.J.B. Fayomi, G.W. Roberts, and M. Sawan, "Low-voltage CMOS analog bootstrapped switch for sample-and-hold circuit: Design and chip characterization," Proc. IEEE Int. Symp. on Circuits and Systems, vol.3, pp.2200–2203, May 2005.

[5] D. Aksin, M.A. Al-Shyoukh, and F. Maloberti, "A bootstrapped switch for precise sampling of inputs with signal range beyond supply voltage," Proc. IEEE Custom Integrated Circuits Conf., pp.743–746, Sept. 2005.

[6] C. Lillebrekke, C. Wulff, and T. Ytterdal "Bootstrapped switch in low-voltage digital 90 nm CMOS technology," Proc. NORCHIP Conf., pp.234–236, Nov. 2005.

[7] B.J. Sheu and C. Hu, "Switch-induced error voltage on a switched capacitor," IEEE J. Solid State Circuits, vol.19, no.4, pp.519–525, Aug. 1984.

[8] D. Vecchi, C. Azzolini, A. Boni, F. Chaahoub, and L. Crespi, "100-MS/s 14-b track-and-hold amplifier in 0.18-µm CMOS," Proc. 31st ESSCIRC, pp.259–262, Sept. 2005.

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This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Add to My Personal Archive Download to citation manager Request Permissions Google Scholar Articles by NICODIMUS, R. A. Articles by FUJII, N. Search for Related Content Social Bookmarking          What's this?