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 Ω 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.

FEATURES

• Wide bandwidth: 500 MHz

• Low crosstalk at 5 MHz: - 85 dB

• Low RDS(on): 5 Ω, 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