ADRF502x Silicon SPDT Switches Analog Devices Inc. ADRF502x Silicon SPDT Switches are general-purpose SPDT switches that offer high isolation and a low insertion loss. Constructed using a non-reflective 50Ω design, the switches provide high linearity. The switches exhibit high power capabilities on both through and terminated paths. These broadband switches from Analog Devices require +3.3V and -2.5V (ADRF5020/21/24/25), or +3.3V and -3.3V (ADRF5026/27) dual supply voltages. They provide CMOS/LVTT logic-compatible control and are ideal for test instrumentation, VSATs, ECMs, and broadband telecommunications systems.