ADG902 - Analog Devices

ADG902 Wideband 40 dB Isolation at 1 GHz CMOS 1.65V to 2.75V SPST Switches

The ADG901/ADG902 are wideband switches that use a complementary metal-oxide semiconductor (CMOS) process to provide high isolation and low insertion loss to 1 GHz. The ADG901 is an absorptive (matched) switch with 50 Ω terminated shunt legs, while the ADG902 is a reflective switch. These devices are designed such that the isolation is high over the dc to 1 .

Features

ADG901 absorptive switch ADG902 reflective switch Enables user to pass dc signals up to 0.5 V without dc blocking capacitor Operational from 0 Hz up to 4.5 GHz at −3 dB frequency 40 dB off isolation at 1 GHz typical 0.8 dB insertion loss at 1 GHz typical 17 dBm P1dB at 1 GHz typical Available in 3 mm × 3 mm, 8-lead MSOP and 8-lead LFCSP <1 μA power consumption CMOS/LVTTL control logic Specified at 1.65 V to 2.75 V APPLICATIONS Wireless communications General purpose RF switching Dual-band applications High speed filter selection Digital transceiver front-end switch IF switching Tuner modules A.