Wideband 4 GHz, 43 dB Isolation at 1 GHz, CMOS 1.65 V to 2.75 V, 2:1 Mux/SPDT Data Sheet ADG918/ADG919 FEATURES FUNCTIONAL BLOCK DIAGRAMS Wideband switch: 3 dB at 4 GHz ADG918 Absorptive/reflective switches RF1 High off isolation (43 dB at 1 GHz) RFC 50 Low insertion loss (0.8 dB at 1 GHz) Single 1.65 V to 2.75 V power supply RF2 CTRL CMOS/LVTTL control logic 8-lead MSOP and tiny 3 mm 3 mm LFCSP 50 Low power consumption (<1 A) APPLICATIONS ADG919 Wireless communications RF1 General-purpose RF switching RFC Dual-band applications RF2 High speed filter selection Digital transceiver front end switch CTRL IF switching Tuner modules Figure 2. Antenna diversity switching GENERAL DESCRIPTION PRODUCT HIGHLIGHTS The ADG918/ADG919 are wideband switches using a CMOS 1. 43 dB off isolation at 1 GHz. process to provide high isolation and low insertion loss to 2. 0.8 dB insertion loss at 1 GHz. 1 GHz. The ADG918 is an absorptive (matched) switch having 3. Tiny 8-lead MSOP/LFCSP. 50 terminated shunt legs, whereas the ADG919 is a reflective 0.4 switch. These devices are designed such that the isolation is 0.6 high over the dc to 1 GHz frequency range. They have on-board 8 1.0 CMOS control logic, thus eliminating the need for external 1.2 controlling circuitry. The control inputs are both CMOS and 1.4 LVTTL compatible. The low power consumption of these 1.6 CMOS devices makes them ideally suited to wireless and 1.8 general-purpose high frequency switching applications. 2.0 0 2.2 V = 2.5V DD 2.4 10 T = 25C A 2.6 2.8 V = 2.5V DD T = 25C A 3.0 30 3.2 10k 100k 1M 10M 100M 1G 10G 40 FREQUENCY (Hz) 50 Figure 3. Insertion Loss vs. Frequency S12 60 70 80 S21 90 100 10k 100k 1M 10M 100M 1G 10G FREQUENCY (Hz) Figure 1. Off Isolation vs. Frequency Rev. E Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. 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Technical Support www.analog.com 0. 20 ISOLATION (dB) 03335-003 INSERTION LOSS (dB) 03335-001 03335-004ADG918/ADG919 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Terminology .................................................................................... 10 Applications ....................................................................................... 1 Test Circuits ..................................................................................... 11 Functional Block Diagrams ............................................................. 1 Applications Information .............................................................. 13 General Description ......................................................................... 1 Absorptive vs. Reflective Switch ............................................... 13 Product Highlights ........................................................................... 1 Wireless Metering....................................................................... 13 Revision History ............................................................................... 2 Tuner Modules ............................................................................ 13 Specif icat ions ..................................................................................... 3 Filter Selection ............................................................................ 13 Absolute Maximum Ratings ............................................................ 5 ADG918/ADG919 Evaluation Board .......................................... 14 ESD Caution .................................................................................. 5 Outline Dimensions ....................................................................... 15 Pin Configuration and Function Descriptions ............................. 6 Ordering Guide .......................................................................... 16 Typical Performance Characteristics ............................................. 7 REVISION HISTORY 5/2016Rev. D to Rev. E 8/2008Rev. A to Rev. B Updated Outline Dimensions ....................................................... 15 Changes to Table 1, AC Electrical Characteristics, Third Order Intermodulation Intercept ................................................................ 3 3/2016Rev. C to Rev. D Updated Outline Dimensions ....................................................... 15 Changed CP-8-2 to CP-8-13 ........................................ Throughout Changes to Ordering Guide .......................................................... 16 Changes to Figure 4 and Table 3 ..................................................... 6 Added Figure 5, Renumbered Sequentially .................................. 6 9/2004Rev. 0 to Rev. A Changed ADG9xx Evaluation Board Section to ADG918/ Updated Format .................................................................. Universal ADG919 Evaluation Board Section ............................................. 14 Change to Data Sheet Title ............................................................... 1 Updated Outline Dimensions ....................................................... 15 Change to Features ............................................................................ 1 Changes to Ordering Guide .......................................................... 16 Change to Product Highlights ......................................................... 1 Changes to Specifications ................................................................. 3 9/08Rev. B to Rev. C Change to ADG9xx Evaluation Board section ........................... 13 Changes to Ordering Guide .......................................................... 16 Changes to Ordering Guide .......................................................... 14 8/03Revision 0: Initial Version Rev. E Page 2 of 16