1. [1] G. Nicollini, A. Nagari, P. Confalonieri, and C. Crippa, “A -80dB THD, 4Vpp switched capacitor filter for 1.5V battery-operated systems, ” IEEE J. Solid-State Circuits, vol.21, no.8, pp.1214-1219, Aug. 1996.
2. [2] S.S. Bazarjani, M. Snelgrove, and T. MacElwee, “A 1V switched-capacitor ∑Δ modulator, ” Proc. IEEE International Symposium on Circuits and Systems, pp.70-71, 1995.
3. Switched-opamp: an approach to realize full CMOS switched-capacitor circuits at very low power supply voltages
4. [4] R. Castello and P.R. Gray, “A high-performance micropower switched-capacitor filter, ” IEEE J. Solid-State Circuits, vol.SC-20, no.6, pp.1122-1132, Dec. 1985.
5. [5] M.G. Degrauwe, J. Rijmenants, E.A. Vittoz, and H.J. DeMan, “Adaptive biasing CMOS amplifiers, ” IEEE J. Solid-State Circuits, vol.SC-17, no.3, pp.522-528, June 1982.