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The paper presents the realization of frequencyhopping filters based on Current Differencing Transconductance Amplifier (CDTA) and Voltage Differencing Transconductance Amplifier (VDTA). The proposed filters are reconfigurable and provide Class 0, Class 1, Class 2 and Class 3 filter functionality using a single configuration. It allows hopping from one frequency to another by switching between the...
This paper presents shadow filter configuration implemented using operational transresistance amplifier (OTRA). In shadow filters an external amplifier is added in the feed back loop of the basic filter and by controlling the gain of this amplifier the characteristics of the resulting filter can be tuned. Depending upon the value of A the filter characteristics can be varied from very low to very...
This paper presents a pulse width modulator (PWM) designed using current differencing buffered amplifier (CDBA) based relaxation oscillator. The theoretical propositions are verified through SPICE Simulations Experimental results are also presented which are in tune with the proposed theory.
A novel single input five output voltage mode universal filter based on differential difference current conveyor transconductance amplifier (DDCCTA) is presented. It employs grounded passive components namely two capacitors and a resistor. The proposed filter offers the following advantageous features: high input impedance -- a desirable property of voltage mode filters, simultaneous availability...
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