Abstract
This paper presents an electronically tunable
current-mode SIMO/MISO universal biquad filter using multioutput
current controlled current conveyor transconductance
amplifiers (MO-CCCCTAs). The proposed filter employs only
two CCCCTAs and two grounded capacitors. The proposed
configuration can be used as either single input multi-output
(SIMO) or multi (three) input single output (MISO) current
mode filter. It can realize all five different standard filter
functions i.e. low-pass (LP), band-pass (BP), high-pass (HP),
band-reject (BR) and all-pass (AP). The circuit enjoys an
independent current control of pole frequency and bandwidth.
Both the active and passive sensitivities are no more than
unity. The validity of proposed filter is verified through
computer simulations using PSPICE, the industry standard
tool.
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