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Low-Voltage, Low-Distortion and Rail-to-Rail CMOS Sample and Hold Circuit
Koichi TANNO Kiminobu SATO Hisashi TANAKA Okihiko ISHIZUKA
Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Vol.E88-A
No.10
pp.2696-2698 Publication Date: 2005/10/01 Online ISSN:
DOI: 10.1093/ietfec/e88-a.10.2696 Print ISSN: 0916-8508 Type of Manuscript: Special Section LETTER (Special Section on Nonlinear Theory and its Applications) Category: Keyword: sample hold circuit, low-voltage circuits, boost circuits, MOS analog integrated circuits, analog circuits,
Full Text: PDF(257.1KB)>>
Summary:
In this letter, we propose a sample and hold circuit (S/H circuit) with the clock boost technique and the input signal tracking technique. The proposed circuit block generates the clock with the amplitude of VDD + vin, and the clock is used to control the MOS switch. By applying this circuit to a S/H circuit, we can deal with the rail-to-rail signal with maintaining low distortion. Furthermore, the hold error caused by the charge injection and the clock feedthrough can be also reduced by using the dummy switch. The Star-HSPICE simulation results are reported in this letter.
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