A 200 MHz 15 mW BiCMOS sample-and-hold amplifier with 3 V supply

This sample-and-hold amplifier for the front end of high-speed low-power A/D converters with 10 b resolution has 1.6 V swing in a 3.3 V system with negligible sacrifice in speed, linearity, or power dissipation. Fabricated in a 1 /spl mu/m 20 GHz BiCMOS process, the circuit operates at twice the speed of previous 3 V SHAs.