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DG381BDJ
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Product Detailed Parameters
- Description：IC SWITCH SPST-NCX2 50OHM 14DIP
- Series：-
- Mfr：Vishay Siliconix
- Package：Tube
- Switch Circuit：SPST - NC
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：50Ohm
- Channel-to-Channel Matching (ΔRon)：-
- Voltage - Supply, Single (V+)：13V ~ 36V
- Voltage - Supply, Dual (V±)：±7V ~ 22V
- Switch Time (Ton, Toff) (Max)：150ns, 130ns (Typ)
- -3db Bandwidth：-
- Charge Injection：10pC
- Channel Capacitance (CS(off), CD(off))：14pF, 14pF
- Current - Leakage (IS(off)) (Max)：5nA
- Crosstalk：-74dB @ 500kHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Through Hole
- Package / Case：14-DIP (0.300", 7.62mm)
- Supplier Device Package：14-PDIP
- Number of Circuits：2
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Overview
The DG381BDJ is a dual single-pole single-throw (SPST) analog switch manufactured by Vishay Siliconix. It operates within a supply voltage range of 0 V to 15 V for single supplies or ±7.5 V for dual supplies, with a maximum dual supply voltage of 15 V. The device features a maximum on-resistance of 50 Ohms and supports a DC switch current of 30 mA. Key timing parameters include a maximum turn-on time of 150 ns and a maximum turn-off time of 130 ns. Power dissipation is rated at 470 mW, with a maximum supply current of 500 uA. It functions reliably across an operating temperature range from -40°C to +85°C and is housed in a 14-pin PDIP package.
Feature Summary
- Dual SPST configuration providing independent signal path control
- CMOS technology enabling low power consumption and high input impedance
- Through-hole mounting capability via standard DIP packaging
Applications
- Signal routing in data acquisition systems
- Multiplexing audio and video signals
- Instrumentation front-end switching
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels due to end-of-life status. Request original datasheets and compliance documentation to confirm RoHS adherence and manufacturing origin. Inspect physical packages for signs of handling damage or counterfeit indicators before integration into production lines.
Selection Notes
Evaluate the 50 Ohm on-resistance limit against signal integrity requirements for the specific application bandwidth. Confirm that the 15 V maximum supply voltage aligns with system power rails. Consider the 150 ns switching speed suitability for the target data rate. Ensure thermal management accommodates the 470 mW power dissipation rating under worst-case load conditions.
Part Context
This component belongs to the DG series of analog switches from Vishay Siliconix, designed for general-purpose signal switching applications. The DG381 variant specifically offers a dual-channel architecture suitable for compact circuit designs requiring isolated signal paths without complex multiplexer logic.
Replacement Considerations
Public sources list DG381BDJ-E3 as a related variant. Verify pin compatibility and electrical parameter equivalence before substitution. Note that the base model DG381BDJ is marked as obsolete in distributor records.
