On the New Design of CFA based Voltage Controlled Integrator/ Differentiator Suitable for Analog Signal Processing
نویسنده
چکیده
Some new active Voltage Controlled RC integrator and differentiator circuit realizations, with both single and differential input capabilities, using a few passive components and a current feedback amplifier (CFA) device, are proposed. A multiplier (ICL 8013) element has been appropriately utilized in the feed forward / feedback connection to obtain electronic tuning of the time constant (τo) by the d.c. control voltage (Vc) of the multiplier. Experimental result on wave processing had been verified in the frequency range of 50 KHz ∼ 300 KHz. The active τo sensitivities in the event of non-ideal CFA are shown to be extremely low. Key-Words: Current feedback amplifier, voltage controlled integrator/differentiator (VCI/VCD)
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