Operational trans-resistance amplifier
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Single OTRA Based First Order Multifunction Filter
Abstract: A first order voltage mode (VM) multifunction filter has been proposed in this paper. It uses a single operational trans-resistance amplifier (OTRA) and few passive components. The same topology can be used for the implementation of first order low pass (LP), high pass (HP) and all pass (AP) filter functions. The LP and HP filters proposed here have variable gains and orthogonal tunability of gain and cut-off frequency. The theoretical …
Published in Journal of VLSI Design Tools and Technology · Vol. 7, Issue 2, 2017 · pp. 1–6 Read article