GENERAL DESCRIPTION

The ADG918/ADG919 are wideband switches using a CMOS

process to provide high isolation and low insertion loss to

1 GHz. The ADG918 is an absorptive (matched) switch having

50 Ω terminated shunt legs, whereas the ADG919 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 and

general-purpose high frequency switching applications.

FEATURES

Wideband switch: −3 dB at 4 GHz

Absorptive/reflective switches

High off isolation (43 dB at 1 GHz)

Low insertion loss (0.8 dB at 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

Low power consumption (<1 μA)

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

ADG918BRM-REEL7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ADG918BRM-REEL7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。