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5365063 | Laot et al. | Nov 1994 | A |
Number | Date | Country |
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0123275 | Oct 1984 | EP |
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Hogervorst R et al: “Compact CMOS Constant-GM Rail-to-Rail Input Stage With GM-Control by an Electronic Zener Diode” IEEE Journal of Solid-State Circuits, US, IEEE Inc. New York, vol. 31, No. 7, Jul. 1, 1996, pp. 1035-1040, XP000632391. |