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DG642

Vishay Siliconix
Part Number DG642
Manufacturer Vishay Siliconix
Description Low On-Resistance Wideband/Video Switches
Published Jun 3, 2005
Detailed Description DG641/642/643 Vishay Siliconix Low On-Resistance Wideband/Video Switches FEATURES D D D D D D D Wide Bandwidth: 500 MHz...
Datasheet PDF File DG642 PDF File

DG642
DG642

Overview
DG641/642/643 Vishay Siliconix Low On-Resistance Wideband/Video Switches FEATURES D D D D D D D Wide Bandwidth: 500 MHz Low Crosstalk at 5 MHz: –85 dB Low rDS(on): 5 W , DG642 TTL Logic Compatible Fast Switching: tON 50 ns Single Supply Compatibility High Current: 100 mA, DG642 BENEFITS D D D D D D High Precision Improved Frequency Response Low Insertion Loss Improved System Performance Reduced Board Space Low Power Consumption APPLICATIONS D D D D D D D D RF and Video Switching RGB Switching Video Routing Cellular Communications ATE Radar/FLIR Systems Satellite Receivers Programmable Filters DESCRIPTION The DG641/642/643 are high performance monolithic video switches designed for switching wide bandwidth analog and digital signals.
DG641 is a quad SPST, DG642 is a single SPDT, and DG643 is a dual SPDT function.
These devices have exceptionally low on-resistances (5 W typ—DG642), low capacitance and high current handling capability.
To achieve TTL compatibility, low channel capacitances and fast switching times, the DG641/642/643 are built on the Vishay Siliconix proprietary D/CMOS process.
Each switch conducts equally well in both directions when on, and blocks up to 14 Vp-p when off.
An epitaxial layer prevents latchup.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION Dual-In-Line and SOIC IN1 D1 S1 V– GND S4 D4 IN4 1 2 3 4 DG641 5 6 7 8 Top View 16 IN2 15 D2 14 S2 13 V+ 12 GND 11 S3 10 D3 9 IN3 S1 D1 V– GND 1 2 3 4 Dual-In-Line and SOIC IN1 D1 GND 8 7 6 IN S1 V+ V– D2 S4 S2 GND D4 1 2 3 4 5 6 7 8 Dual-In-Line and SOIC IN2 D2 GND S2 V+ S3 GND D3 16 15 14 13 12 11 10 DG642 Top View 5 DG643 Top View 9 TRUTH TABLEĊDG641 Logic 0 1 Logic “0” v 0.
8 V Logic “1” w 2.
4 V Document Number: 70058 S-52433—Rev.
E, 06-Sep-99 TRUTH TABLEĊDG642 Logic 0 1 TRUTH TABLEĊDG643 Logic 0 1 Switch OFF ON SW1 OFF ON Logic “0” v 0.
8 V Logic “1” w 2.
4 V SW2 ON OFF SW1, SW2 OFF ON Logic “0” v 0.
8 V Logic “1” w 2.
4 V SW3, SW4 ON OFF www.
vishay.
com S FaxBack 408-970-5600 4-1 D...


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