Single fully differential current feedback operational amplifier (FDCFOA) biquads with positive feedback topology
Istanbul University - Journal of Electrical and Electronics Engineering, cilt.7, sa.1, ss.305-308, 2007 (ESCI, Scopus, TRDizin)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 7 Sayı: 1
- Basım Tarihi: 2007
- Dergi Adı: Istanbul University - Journal of Electrical and Electronics Engineering
- Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus, TR DİZİN (ULAKBİM)
- Sayfa Sayıları: ss.305-308
- İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet
Özet
New configuration for the design of biquad filters with positive feedback topology is presented. The configuration can synthesize low-pass, high-pass and band-pass filter functions according to the passive components used in circuits. The proposed configuration employs only one FDCFOA as active element and minimum number of passive elements, namely two capacitors and resistors. SPICE simulation results are given to confirm the validity of the analysis and to point out the high performance of the filters. The output of the filter exhibits high output impedance so that the synthesized filter can be cascaded without additional buffers.