Patent ID: 7271663

Claim:
An amplifier comprising: (a) an input stage for producing a first voltage signal; (b) an output stage for producing an output signal in response to the first voltage signal, the output stage including i. a first output transistor having a first electrode coupled to a first supply rail and a control electrode coupled to receive the first voltage signal, ii. a first output cascode transistor having a first electrode coupled to a second electrode of the first output transistor and a second electrode coupled to an output conductor conducting the output signal, and iii. a first gate control amplifier including a first input stage including a first input transistor having a control electrode coupled to the first electrode of the first output cascode transistor and a first active load transistor, the first input transistor and the first active load transistor being coupled to a first output coupled to a control electrode of the first output cascode transistor, the first gate control amplifier also including a first ancillary stage having an input coupled to the first electrode of the first output cascode transistor and an output coupled to a control electrode of the first active load transistor.