Peregrine Semiconductor SPDT Switches Offer Design Flexibility to Address High-Performance RF Demands

The new PE4250 reflective and PE4251 absorptive 50-Ohm SPDT RF switches deliver best-in-class linearity and are pin- and logic-compatible, environmentally friendly alternatives to gallium-arsenide (GaAs)-based ICs. These HaRP™-enhanced devices, offered in the tiny RoHS-compliant 8-lead MSOP package, operate near DC through 3 GHz and deliver market-leading RF performance with P1dB of +30.5 dBm and IP3 (typ) of +59 dBm; and fast switching speed of 150 nS. The PE4250 and PE4251 utilize Peregrine’s HaRP™ Technology which eliminates gate and phase lag and results in fast settling time and no insertion loss drift. In addition, the devices have extremely low Insertion Loss (IL) of 0.55 to 0.75 dB typical from 10MHz to 3GHz; high Isolation across the operating range (51-40 dB for PE4250 and 62-43 dB for PE4251); and excellent ESD protection of 4000 V HBM. Flexible 3.3V or 5.0V dual supply voltage with 55/75 uA supply current, respectively, allows customers to select either supply voltage without sacrificing IIP3 linearity or degradation in P1dB performance. The new switches feature single-pin or complementary control inputs and no blocking capacitors are required.