3 Input/ 2 Output Current-Mode Universal Biquad Filter Using Single DO-CCCDTA
| Paper File | Download Paper File | | Appear In | 2007 4th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON 2007) | | Publication Date | 09/05/2007 - 12/05/2007 | | Volume | | | Pages | 69 - 72 | | Author 1 | Winai Jaikla | | Author 2 | Montree Siripruchyanun |
Abstract
This article presents a three-input two-output
current-mode universal biquadratic filter performing completely
standard functions: low-pass, high-pass, band-pass, band-reject
and all-pass functions, based on Dual-Output Current Controlled
Current Differencing Transconductance Amplifier (DOCCCDTA).
The features of the circuit are that: the quality factor
and pole frequency can be tuned orthogonally via the input bias
currents: the circuit description is very simple, consisting of
merely one DO-CCCDTA, one voltage buffer and 2 grounded
capacitors. Additionally, each function response can be selected
by suitably selecting input signals in digital method. Without any
external resistors and using only grounded elements, the
proposed circuit is very suitable to further develop into an
integrated circuit. The PSPICE simulation results are depicted.
The given results agree well with the theoretical anticipation. The
maximum power consumption is approximately 1.81mW at
±1.5V power supply voltages. |
