A new, improved CMOS realization of CDTA and its filter applications
TURKISH JOURNAL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCES, cilt.19, sa.4, ss.631-642, 2011 (SCI-Expanded, Scopus, TRDizin)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 19 Sayı: 4
- Basım Tarihi: 2011
- Doi Numarası: 10.3906/elk-1003-467
- Dergi Adı: TURKISH JOURNAL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCES
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
- Sayfa Sayıları: ss.631-642
- Anahtar Kelimeler: CDTA, analog MOS integrated circuits, active filters, DIFFERENCING TRANSCONDUCTANCE AMPLIFIER, CURRENT CONVEYOR, CURRENT MIRROR, ACCURATE
- İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet
Özet
This paper presents a high-performance current differencing transconductance amplifier (CDTA), a recently reported active element, especially suitable for analog signal processing applications. A high linearity CMOS configuration for a CDTA is made up of high linearity input and output stages. The proposed CDTA provides high output impedance at port X and excellent input/output current tracking. A biquad filter circuit was chosen as an application example in order to demonstrate the performance of the CDTA. PSpice simulation results using a TSMC 0.35-mu m CMOS process model were included to verify the expected values.