| Autor: |
A. Yeşil, F. Kacar, H. Kuntman |
| Jazyk: |
angličtina |
| Rok vydání: |
2011 |
| Předmět: |
|
| Zdroj: |
Radioengineering, Vol 20, Iss 3, Pp 632-637 (2011) |
| Druh dokumentu: |
article |
| ISSN: |
1210-2512 |
| Popis: |
The voltage differencing transconductance amplifier (VDTA) is a recently introduced active element for analog signal processing. However, the realization of VDTA is not given by any author yet. In this work, a new and simple CMOS realization of VDTA is presented. The proposed block has two voltage inputs and two kinds of current output, so it is functional for voltage- and transconductance-mode operation. Furthermore, VDTA exhibits two different values of transconductance so that there is no need to external resistors for VDTA based applications which seems to be a good advantage for analog circuit designer. A CMOS implementation of VDTA and a voltage-mode VDTA based filter are proposed and simulated. An application example of fourth order flat-band band-pass amplifier is given and the performance of the circuit is demonstrated by comparing the theory and simulation. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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