DG643中文資料威世科技數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

FEATURES

? Wide bandwidth: 500 MHz

? Low crosstalk at 5 MHz: - 85 dB

? Low RDS(on): 5 ?, DG642

? TTL logic compatible

? Fast switching: tON 50 ns

? Single supply compatibility

? High current: 100 mA, DG642

BENEFITS

? High precision

? Improved frequency response

? Low insertion loss

? Improved system performance

? Reduced board space

? Low power consumption

APPLICATIONS

? RF and video switching

? RGB switching

? Video routing

? Cellular communications

? ATE

? Radar/FLIR systems

? Satellite receivers

? Programmable filters

DESCRIPTION

The DG641, DG642, DG643 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 ??typ-DG642), low capacitance and high

current handling capability.

To achieve TTL compatibility, low channel capacitances and

fast switching times, the DG641, DG642, DG643 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.