论文信息 - The conception of differential-input buffered and transconductance amplifier (DBTA) and its application

The conception of differential-input buffered and transconductance amplifier (DBTA) and its application

In this paper, a novel versatile active building block the differential-input buffered and transconductance amplifier (DBTA) is proposed. The application of the newly defined active function block is shown on the design of voltage-mode (VM), multi-input and single-output (MISO)-type multifunction biquad, employing single DBTA and five passive elements. Proposed VM filter structure can realize four filter functions i.e., low- (LP), band- (BP), high-pass (HP) and band-stop (BS) without changing the circuit topology and enables independent control of the quality factor Q using single passive element. Theoretical results are verified by PSPICE simulations using a BJT realization of DBTA.

Kamil Vrba | Norbert Herencsar | Jaroslav Koton | Ivo Lattenberg

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