Complementary constant-gm biasing of Nauta-transconductors in low-power gm-C filters to +/-2% accuracy over temperature. - Richard Jan Engel Jansen; Johan Haanstra; David Sillars Greenpeak (ESSCIRC, 2012)

Complementary Constant-gm Biasing of Nauta-Transconductors in Low-Power gm-C Filters to ±2% Accuracy Over Temperature. - Richard Jan Engel Jansen; Johan Haanstra; David Sillars Greenpeak (IEEE J. Solid State Circuits, 2013)