Patent ID: 6741129
Filing Date: 2004-05-25
Classification: H03F

Abstract:
A slew rate boosted fully differential amplifier comprising:an input stage having first and second differential inputs, wherein the input stage is operative to generate first and second differential charging currents in response to an input signal; a first high impedance gain node operative to receive the first differential charging current; a second high impedance gain node operative to receive the second differential charging current; a first compensation capacitor having one plate coupled to the first high impedance gain node and having its opposite plate coupled to the second differential input, wherein substantially none of the first differential charging current is required to charge the first compensation capacitor; a second compensation capacitor having one plate coupled to the second high impedance gain node and having its opposite plate coupled to the first differential input, wherein substantially none of the second differential charging current is required to charge the second compensation capacitor; a first output buffer coupled to the first high impedance gain node; and a second output buffer coupled to the second high impedance gain node.