A new first order allpass filter realization in the current mode using
the second generation current conveyor (CC II) devices is proposed. T
he novelties of the configuration are that the gain is independently a
djustable by a resistor ratio. The phase shift, center frequency and g
ain are practically insensitive to device nonidealities; the deviation
s in these variables introduced by the CC II nonidealities can be prec
isely compensated by simple design.