MA4AGBLP912

AlGaAs Beamlead PIN Diode Features Low Series Resistance Low Capacitance 5 Nanosecond Switching Speed Can be Driven by a Buffered +5 V TTL Silicon Nitride Passivation Polyimide Scratch Protection RoHS Compliant Applications Aerospace & Defense ISM Description The MA4AGBLP912 is an Aluminum-GalliumArsenide anode enhanced, beam lead PIN diode. AlGaAs anodes, which utilize MACOM’s patented hetero-junction technology, produce less diode “On” resistance than conventional GaAs or silicon devices. This device is fabricated in a OMCVD system using a process optimized for high device uniformity and extremely low parasitics. The result is a diode with low series resistance, 4 Ω, low capacitance, 28 fF, and an extremely fast switching speed of 5nS. It is fully passivated with silicon nitride and has an additional polymer coating for scratch protection. The protective coating prevents damage to the junction and the anode air bridges during handling and assembly. The ultra low capacitance of the MA4AGBLP912 device makes it ideally suited for use up to 40 GHz when used in a shunt configuration. The low RC product and low profile of the beamlead PIN diode allows for use in microwave switch designs, where low insertion loss and high isolation are required. The operating bias conditions of +10 mA for the low loss state, and 0 V, for the isolation state permits the use of a simple +5 V TTL gate driver. AlGaAs, beamlead diodes, can be used in switching arrays on radar systems...