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. Author manuscript; available in PMC: 2010 May 27.
Published in final edited form as: IEEE Trans Circuits Syst I Regul Pap. 2007 Apr 1;54(4):736–744. doi: 10.1109/TCSI.2006.888777

Fig. 4.

Fig. 4

Transistor-level schematics of (a)SBDI circuit proposed by Wu and Hsieh [14–16] (b) the proposed scheme in which we share a common half circuit (i.e., stage 1), between all of the amplifiers (i.e., amplifiers n and N shown) in the array shown in Fig. 3b.