FEEDBACK FET LOGIC - A ROBUST, HIGH-SPEED, LOW-POWER GAAS LOGIC FAMILY

The high speed and low power of feedback FET logic (FFL) is mainly due to a push-pull output stage with a feedback inverter that shuts off the output current after the logic high state has been reached. FFL is lower in power and is two to four times faster than comparable GaAs direct-coupled FET logic and Si CMOS and Si BiCMOS when driving on-chip capacitances that are typical of large IC's.