Current-mode Biquadratic Universal Filter Design with Two Terminal Unity Gain Cells
Alternativní metriky PlumXhttp://hdl.handle.net/11012/37045
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A grounded parallel lossy active inductor and two current-mode (CM) universal filters are presented in this paper. All the circuits use two voltage followers (VFs) and a current follower (CF). The parallel lossy active inductor includes a grounded capacitor which is attractive in integrated circuit (IC) technology. The CM universal filters have one input and standard three outputs such as band-pass (BP), low-pass (LP) and high-pass (HP) responses. All-pass and notch outputs can be obtained by adding extra one CF. Suggested structures in this paper can be constructed with commercially available active devices such as AD844s. Non-ideal gain and intrinsic X-terminal parasitic resistor effects are examined. Several computer simulations with SPICE program and experimental results by employing AD844s are drawn to verify theoretical ones.
Zdrojový dokumentRadioengineering. 2012, vol. 21, č. 1, s. 304-311. ISSN 1210-2512
- 2012/1