F. Wang et R. Harjani, AN IMPROVED MODEL FOR THE SLEWING BEHAVIOR OF OPAMPS, IEEE transactions on circuits and systems. 2, Analog and digital signal processing, 42(10), 1995, pp. 679-681
A new time-domain model for the slewing behavior of two stage opamps i
s presented. This model includes the effects of the load capacitance,
compensation capacitance, device sizes and the nonlinear behavior of t
he transistors during the slewing period. This model improves on the c
ommonly used constant current models and allows for more predictable d
esigns. The model shows good agreement with simulations. Circuit desig
n results using the traditional and new improved models are presented.