The HMC-SDD112 is a GaAs PIN Diode MMIC, High Isolation SPDT Switch die which is rated from 55 to 86 GHz, and exhibits 1.8 dB of insertion loss and 35 dB of isolation at midband. This compact MMIC employs an all-shunt PIN diode topology for low insertion loss and high isolation, while the independent control lines allow the user to implement a reflective “all-off” state if required. The HMC-SDD112 SPDT MMIC accepts control voltages of -5V and +5V, and requires no fixed bias and no external matching components.The HMC-SDD112 complements Hittite's broad line of SPST and SPNT switch products which are available in die, SMT and connectorized module formats with frequency coverage from DC to 86 GHz.Samples are available from stock and can be ordered via the company's e-commerce site or via direct purchase order. Released data sheets are available on-line at www.hittite.com.