GENERAL DESCRIPTION

The ADG901/ADG902 are wideband switches that use a 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 GHz frequency range. They have on-board CMOS control logic, thus eliminating the need for external controlling circuitry. The control inputs are both CMOS and LVTTL compatible. The low power consumption of these CMOS devices makes them ideally suited to wireless applications and general-purpose high frequency switching.

FEATURES

Wideband switch: −3 dB @ 4.5 GHz

ADG901—absorptive switch

ADG902—reflective switch

High off isolation: 40 dB @ 1 GHz

Low insertion loss: 0.8 dB @1 GHz

Single 1.65 V to 2.75 V power supply

CMOS/LVTTL control logic

8-lead MSOP and tiny 3 mm × 3 mm LFCSP packages

Low power consumption (

APPLICATIONS

Wireless communications

General purpose RF switching

Dual-band applications

High speed filter selection

Digital transceiver front end switch

IF switching

Tuner modules

Antenna diversity switching list

ADG901属于RF/IF，射频/中频和 RFID > 射频开关。亚德诺半导体技术有限公司制造生产的ADG901射频开关射频开关产品是用于在多个可用信号路径之间路由 RF、IF 或微波信号的器件。示例应用包括多天线（分集）接收器中的天线选择、多模式系统中发射-接收路径的选择，或在发射和接收信号链之间切换天线。