Low power high gain bandwidth opamp in low cost 180 nm Bulk CMOS technology

This work presents a fully differential operational amplifier (opamp) design architecture, that achieves a high gain bandwidth at a low power consumption. For verification, the architecture is implemented in a low cost 180 nm bulk CMOS technology. The chip achieves a high gain bandwidth of 2.03 GHz at 55° phase margin with a low power consumption of only 2.25 mW. Of course even better results are possible if more sophisticated technologies like BiCMOS or massively scaled technologies are available. The opamp is used in analog baseband filters of communication systems and enables real time ability.