ywguo
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Ericjohnson,
The earliest paper presented the 1.5bit/stage algorithm (RSD) is by B. Ginetti, P. Jespers, "A 1.5 Ms/s 8-bit Pipelined RSD A/D Converter," in European Solid-State Circuits Conference Digest of Technical Papers, pp. 137-140, Sep. 1990. But I havn't that paper since only ESSCIRC papers after 1996 are availabe on its website. But I have another paper by G. Ginetti, et al., A CMOS 13-b cyclic RSD A/D converter, JSSC, July, 1992. I hope it will be helpful for you.
Best regards, Yawei
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