GaAs MSI circuit design for communication systems

Gallium Arsenide (GaAs) technology has been successfully applied to the realisation of switched capacitor (SC) circuits with switching frequencies an order of magnitude above the maximum achieved using CMOS technology. Experimental results which confirm the accurate performance of a second order bandpass filter operating with a 300 MHz switching frequency have been recently achieved. After briefly reviewing these results, this contribution will look forward from this standpoint towards application of the experience gained through that work to meet important emerging requirements in the area of modern broadband monolithic communication systems using high frequency integrated circuit technologies