DG642DY

$1.76

Description：IC SWITCH SPDT X 1 8OHM 8SOIC
Series：-

SKU:12ca071ef49d Category: Analog Switches, Multiplexers, Demultiplexers Brand: Vishay Siliconix

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Product introduction

Product Detailed Parameters

Description：IC SWITCH SPDT X 1 8OHM 8SOIC
Series：-
Mfr：Vishay Siliconix
Package：Tube
Switch Circuit：SPDT
Multiplexer/Demultiplexer Circuit：2:01
On-State Resistance (Max)：8Ohm
Channel-to-Channel Matching (ΔRon)：500mOhm
Voltage - Supply, Single (V+)：3V ~ 15V
Voltage - Supply, Dual (V±)：±3V ~ 15V
Switch Time (Ton, Toff) (Max)：100ns, 60ns
-3db Bandwidth：500MHz
Charge Injection：40pC
Channel Capacitance (CS(off), CD(off))：20pF, 20pF
Current - Leakage (IS(off)) (Max)：10nA
Crosstalk：-85dB @ 5MHz
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SOIC
Number of Circuits：1
Grade：-
Qualification：-

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DG642DY

Overview

The DG642DY is a monolithic video switch manufactured by Vishay Siliconix, housed in an 8-pin Narrow SOIC package. It features a single SPDT configuration with a typical on-resistance of 5 Ω and a maximum of 9 Ω at room temperature. The device supports a bandwidth of 500 MHz into a 50 Ω load, with turn-on and turn-off times reaching 100 ns and 60 ns respectively. It operates within a supply voltage range of ±3 V to ±15 V (V+ up to 21 V) and handles continuous currents up to 100 mA. The component functions across a temperature range of -40 °C to +85 °C.

Feature Summary

TTL logic compatible input interface
Bidirectional signal switching capability
High off-isolation performance

Applications

RF and video switching
RGB switching
Video routing
Cellular communications
Radar/FLIR systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm compliance status and availability. The base part number DG642DY indicates the standard plastic narrow SOIC package variant. Confirm that the required lead finish and environmental certifications align with project specifications before finalizing procurement orders.

Selection Notes

Select this component for applications requiring low insertion loss and high precision analog signal routing. Ensure the design accommodates the specified power dissipation limits and thermal derating requirements above 75 °C. Verify that the control logic levels match the TTL compatibility thresholds defined in the datasheet for reliable switching operation.

Part Context

This device belongs to the DG641/DG642/DG643 series of wideband video switches. While the DG641 offers four SPST channels and the DG643 provides dual SPDT channels, the DG642 specifically delivers a single SPDT function. All variants share the same proprietary D/CMOS process technology designed for fast switching and low capacitance.