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.
CDTA, analog MOS integrated circuits, active filters
KAÇAR, FIRAT and KUNTMAN, HULUSİ HAKAN
"A new, improved CMOS realization of CDTA and its filter applications,"
Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 19:
4, Article 9.
Available at: https://journals.tubitak.gov.tr/elektrik/vol19/iss4/9