The K28 Building block provides a TTL compatible ON/OFF function for microwave amplifiers, ready to use in the the tiny K package. It switches a typical RF amplifier “ON” within 40-60 nanoseconds of a logic command, and, more importantly, can switch an amplifier “OFF” (for self-protection, safety, etc), within 15 nsec. The device is compatible with 3.3V or 5V CMOS logic families.
The device accepts a -5V supply and a Vgate voltage. Logic applied to the part causes it to quickly switch the output between these two voltages, thereby switching the amplifier between operational states.
It is rated for full MIL temperature range, and can be 883 screened.