Patent ID: 9207696
Filing Date: 2015-12-08
Classification: G05F,H03F

Abstract:
1. A multi-stage amplifier comprising a first amplification stage configured to activate or to deactivate a first output stage in response to an input voltage at an input node; the first output stage configured to source a current at an output node of the multi-stage amplifier from a high potential, when activated; a second amplification stage configured to activate or to deactivate a second output stage in response to the input voltage at the input node; and the second output stage configured to sink a current at the output node of the multi-stage amplifier to a low potential, when activated; wherein the first amplification stage and the second amplification stage are configured to activate the first output stage and the second output stage in a mutually exclusive manner, wherein the first amplification stage comprises the second amplification stage comprises a second input transistor arranged in series with the second current source; wherein a gate of the second input transistor is coupled to the input node; wherein the second amplification stage is configured to control a voltage level at a second midpoint between the second current source and the second input transistor, subject to the input voltage at the input node; wherein the second output stage is coupled to the second midpoint.