FAST SWITCHING POWER AMPLIFIER, LOW NOISE AMPLIFIER, AND RADIO FREQUENCY SWITCH CIRCUITS

摘要

A speed-up circuit connectible to a capacitive load to reduce charging time thereof from a pulsed current source connected there includes a first circuit node connectible to the capacitive load. An operational amplifier circuit is connected to the first circuit node and configured as a low resistance voltage source. Added current from the operational amplifier flows to the capacitive load for a predetermined duration between the pulsed current source transitioning between a deactivated state and an activated state, and in response to an activation of the pulsed current source. The added current is combined with the current from the pulsed current source to reduce switching time of the load.