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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.50 [2012] >
IJPAP Vol.50(03) [March 2012] >
| Title: | Versatile current-mode universal biquadratic filter using plus-type dual-output ICCIIs |
| Authors: | Chen, Hua-Pin |
| Keywords: | Current-mode Circuit
ICCII
Analog Circuit Design
Filter
Current Conveyor |
| Issue Date: | Mar-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | In this paper, a
versatile three-input and three-output universal current-mode biquadratic
filter is proposed. The circuit employs three plus-type dual-output inverting
second-generation current conveyors (DO-ICCIIs) as active elements together
with three grounded resistors and two grounded capacitors. The proposed
configuration exhibits high-output impedance which is important for easy
cascading in the current-mode operations. It can be used as either a
single-input three-output or three-input two-output circuit. In the operation
of single-input and three-output circuit, the lowpass, bandpass and bandreject
can be realized simultaneously while the highpass filtering response can be
easily obtained by connecting appropriate output current directly without using
additional stages. In the operation of three-input and two-output circuit, all
five generic filtering functions can be easily realized by selecting different
three input current signals. The filter permits orthogonal controllability of
the quality factor and resonance angular frequency and no component matching
conditions or inverting-type input current signals are imposed. All the passive
and active sensitivities are low. Post-layout simulations are based on using
TSMC 0.18μm 1P6M CMOS
process technology and supply voltages ±0.9V to verify the theoretical
analysis. |
| Page(s): | 188-198 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.50(03) [March 2012]
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