Improving capacitive drive capability of miller compensated amplifier

Abstract

This paper compares a well-known technique of Separating a capacitive load from the feedback path with a resistor to an alternative separation resistor technique and discusses limitations of both techniques. It is shown with small signal analysis und simulations that the suggested compensation technique has a bandwidth advantage over the traditional one, especially in low power designs. This improvement is achieved at the expense of adding un additional pin to an amplifier package if the separation resistor is located off chip.