B. J. Hosticka, R. W. Brodersen, and P. R. Gray, MOS sampled data recursive filters using switched capacitor integrators, IEEE Journal of Solid-State Circuits, vol.12, issue.6, pp.600-608, 1977.
DOI : 10.1109/JSSC.1977.1050967

K. Martin, Improved circuits for the realization of switched-capacitor filters, IEEE Transactions on Circuits and Systems, vol.27, issue.4, pp.237-244, 1980.
DOI : 10.1109/TCS.1980.1084808

L. Acosta, R. G. Carvajal, and M. Jimenez, A CMOS Transconductor with 90 dB SFDR and Low Sensitivity to Mismatch, 2006 IEEE International Symposium on Circuits and Systems, pp.69-72, 2006.
DOI : 10.1109/ISCAS.2006.1692524

F. Krummenacher and N. Joehl, A 4-MHz CMOS continuous-time filter with on-chip automatic tuning, IEEE Journal of Solid-State Circuits, vol.23, issue.3, pp.750-758, 1988.
DOI : 10.1109/4.315

K. C. Kuo and A. Leuciuc, A linear MOS transconductor using source degeneration and adaptive biasing, In: IEEE Trans. Circuits and Systems II: Analog and Digital Signal Processing, vol.48, issue.10, pp.937-943, 2001.