A CMOS Chopper Offset-Stabilized Opamp. - Johan F. Witte; Kofi A. A. Makinwa; Johan H. Huijsing (IEEE J. Solid State Circuits, 2007)

A Current-Feedback Instrumentation Amplifier With 5 µV Offset for Bidirectional High-Side Current-Sensing. - Johan F. Witte; Johan H. Huijsing; Kofi A. A. Makinwa (IEEE J. Solid State Circuits, 2008)