Design of an integrated full d...

Design of an integrated full differential operational amplifierDiplomarbeit: Design of an integrated full differential operational amplier in a 0.35um CMOS-AMS technology.

Anthony FALLU.

Supervisor : Stephan Thiel, Tutor : Professor Klar. April-August 2000. (5 months).

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Abstract :

This paper explains the choice made for a full differential operational amplier. This op amp has been designed for the rst stage of a pipelined A/D Converter (ADC). This means that it has the highest specication of every op amp of all stages, as it concerns the LSB of the ADC. It shows also the solution founded to reach high gain and short settling time, without degrading too much the output swing.

First the operational amplier specication are explained; the different structures tested are then presented and the motivation of the nal topology choice are shown. It pre