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DG642DJ
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Product Detailed Parameters
- Description：IC SWITCH SPDT X 1 8OHM 8DIP
- 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：Through Hole
- Package / Case：8-DIP (0.300", 7.62mm)
- Supplier Device Package：8-PDIP
- Number of Circuits：1
- Grade：-
- Qualification：-
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Overview
The DG642DJ is a monolithic video switch manufactured by Vishay Siliconix, housed in an 8-pin plastic dual-in-line package. It features a single SPDT configuration with a typical on-resistance of 5 ohms and a maximum continuous current handling capability of 100 mA. The device provides a wide bandwidth of 500 MHz and operates within a supply voltage range of -3 V to +15 V. Key dynamic parameters include a turn-on time of 60 ns and a turn-off time of 40 ns at room temperature.
Feature Summary
- High current handling capability suitable for demanding signal paths
- TTL logic compatible control interface for simplified integration
- Bidirectional switching with interchangeable source and drain terminals
Applications
- RF and video signal routing
- RGB switching systems
- Cellular communications equipment
- Radar and FLIR systems
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact package type and temperature rating. Ensure that the component meets all relevant environmental compliance standards required for the intended deployment environment before finalizing procurement.
Selection Notes
Select this component when a single high-current analog switch is required. Verify that the system power supply allows for the necessary negative rail if utilizing the full analog signal range capabilities. Confirm that the package dimensions align with the available PCB real estate constraints.
Part Context
This part belongs to the DG641/642/643 family of low on-resistance wideband video switches. While sharing similar process technology and general performance characteristics, the DG642DJ is distinct due to its single SPDT topology and higher current capacity compared to the quad SPST DG641 or dual SPDT DG643 variants.
Replacement Considerations
Direct pin-compatible replacements within the same series include the DG642DY (SOIC-8 package). Cross-family substitution requires careful evaluation of on-resistance, leakage currents, and package footprint compatibility.
