Current conveyors have been found useful in many applications,
due to their distinct advantages over the conventional
operational amplifier, such as wider bandwidth,
higher slew rate, and better accuracy [1,2]. Therefore,
analog signals processing circuits based on the secondgeneration
current conveyors (CCIIs) are expected to operate
at higher frequencies. Most of the recent papers have
focused on using CCII in the field of active filters [3] and
sinusoidal oscillators [4], however, no reports have been
made on using CCII to build current-mode triangular
wave generators based on the voltage-mode ones.
Conventional voltage-mode triangular generator usually
consists of two stages. The first stage employs an operational
amplifier working in the non-linear region (such as
Schmitt trigger) to produce a square wave signal. The
second stage is an operational amplifier integrator to convert
the square wave into a triangular one. These voltage-mode
triangular wave generators have a limitation on its maximum
frequency due to the low slew rate of operational
amplifiers. Recently, a current-mode triangular wave
generator was proposed using current-feedback operational
amplifier (CFOA) [5] with a reported maximum frequency