A new generation method to implement CMOS floating resistors is presen
ted. The generation method depends on the linearization of the differe
ntial current of two matched NMOS transistors in two alternative confi
gurations. The CMOS floating resistors implemented are based on using
MOS transistors operating in the saturation region with their sources
connected to their substrates. New CMOS floating resistors using the p
roposed design method are given. The magnitude of each of the proposed
CMOS floating resistors is tuned by a control voltage. PSpice simulat
ion results of the new proposed CMOS floating resistors indicating the
linearity range are also given. (C) 1997 Elsevier Science Ltd.