PE4259

The PE4259 from Peregrine Semiconductor is a high-power, Single Pole Double Throw (SPDT) RF switch utilizing the company's patented UltraCMOS™ process. This technology combines the performance of GaAs with the economy of CMOS, built on a silicon-on-insulator (SOI) structure on a sapphire substrate.

The switch operates across a broad frequency range of 10 MHz to 3000 MHz. Key electrical specifications include a typical insertion loss of 0.35 dB at 1000 MHz and 0.5 dB at 2000 MHz, with isolation reaching up to 30 dB at 1000 MHz. It boasts a typical input 1 dB compression point of +33.5 dBm at 1000 MHz when operated with a 3V supply.

Designed for flexibility, the PE4259 supports single-pin or complementary CMOS logic control inputs. It requires a minimum power supply voltage of 1.8V and operates typically at 3V. The device exhibits high ESD tolerance of 2 kV HBM. It is housed in an ultra-small 6-lead SC-70 package, suitable for surface mount applications.

Note that device linearity may degrade below 10 MHz, and a tuning capacitor might be necessary for optimal insertion and return loss performance.