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Cascadable current-mode first-order all-pass filter based on minimal components
Jitendra Mohan1, Sudhanshu Maheshwari
1Department of Electronics & Communication Engineering, Jaypee Institute of Information Technology, Noida 201304, India. jitendramv2000@rediffmail.com
Thescientificworldjournal
|August 20, 2013
Summary
A new current-mode all-pass filter uses minimal components for efficient signal processing. This design offers low input and high output impedance, verified by PSPICE simulations.
Area of Science:
- Electronics
- Circuit Design
- Signal Processing
Background:
- Current-mode filters are essential for signal processing applications.
- Existing designs may have limitations in impedance characteristics or component count.
Purpose of the Study:
- To introduce a novel current-mode first-order all-pass filter.
- To achieve low input impedance and high output impedance.
- To minimize component count for practical realization.
Main Methods:
- Circuit realization using a single dual-X-second-generation current conveyor.
- Inclusion of one grounded capacitor and one grounded resistor.
- Verification through PSPICE simulation with TSMC 0.35 μm CMOS parameters.
Main Results:
- A functional current-mode first-pass filter circuit is presented.
- The circuit exhibits the desired low input and high output impedance characteristics.
- Theoretical analysis is confirmed by simulation results.
Conclusions:
- The proposed filter offers a simple and efficient solution for all-pass filtering.
- The minimum component realization makes it suitable for integrated circuit design.
- The verified performance validates its potential for practical applications.
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