Some circuit design techniques for bipolar and MOS pseudologarithmic rectifiers operable on low supply voltage

Circuit design techniques are presented for pseudologarithmic rectifiers consisting of differential input bipolar and MOS half- and full-wave rectifiers. Pseudohalf-wave rectifiers and pseudofull-wave rectifiers, which utilize transfer characteristics for unbalanced differential pairs, are proposed as a means of approximating the characteristics for half- and full-wave rectifiers in both bipolar technology and MOS technology. These are operable with low supply voltages.<
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