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DG643DY-T1-E3
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Product Detailed Parameters
- Description：IC SWITCH SPDT X 2 15OHM 16SOIC
- Series：-
- Mfr：Vishay Siliconix
- Package：Tape & Reel (TR)
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：15Ohm
- Channel-to-Channel Matching (ΔRon)：1Ohm
- Voltage - Supply, Single (V+)：3V ~ 15V
- Voltage - Supply, Dual (V±)：±3V ~ 15V
- Switch Time (Ton, Toff) (Max)：70ns, 50ns
- -3db Bandwidth：500MHz
- Charge Injection：19pC
- Channel Capacitance (CS(off), CD(off))：12pF, 12pF
- Current - Leakage (IS(off)) (Max)：10nA
- Crosstalk：-87dB @ 5MHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOIC
- Number of Circuits：2
- Grade：-
- Qualification：-
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Overview
The DG643DY-T1-E3 is a dual single-pole double-throw (SPDT) video switch integrated circuit manufactured by Vishay Siliconix. It operates on a single supply voltage ranging from 10 V to 21 V, with a typical operating voltage of 15 V. The device supports a maximum switch voltage of 8 V and features a maximum on-resistance of 15 Ohms. Key performance metrics include a bandwidth of 500 MHz, a maximum turn-on time of 70 ns, and a maximum turn-off time of 50 ns. Typical off-isolation is rated at -60 dB, with a power dissipation capability of 600 mW. It functions within an ambient temperature range of -40°C to +85°C and is housed in a 16-pin SOIC-Narrow package.
Feature Summary
- Dual SPDT configuration for independent signal routing
- High-speed switching with 500 MHz bandwidth
- Low on-resistance for minimal signal attenuation
- Single-supply operation simplifying power design
Applications
- Video signal routing and switching systems
- Test and measurement equipment signal paths
- Data acquisition channel multiplexing
- Communication interface signal selection
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels due to potential obsolescence risks. Confirm RoHS compliance status via official datasheets before integration. Check current lifecycle status as the part may be discontinued or subject to limited availability constraints in certain regions.
Selection Notes
Select this component when dual-channel high-frequency video switching is required within a single-supply architecture. Ensure the application voltage does not exceed the 8 V switch limit. Consider thermal management for the 600 mW power dissipation rating in enclosed environments. Verify package compatibility with the 16-pin SOIC-Narrow footprint during PCB layout.
Part Context
This part belongs to the DG series of analog switches from Vishay Siliconix, specifically designed for video applications. It serves as a successor or alternative to earlier discrete switching solutions, offering integrated dual-channel functionality in a compact surface-mount package suitable for modern electronic designs requiring efficient signal path management.
Replacement Considerations
Public documentation lists DG61 as a recommended alternative. Verify pinout compatibility and electrical specifications against the original design requirements before substitution. Cross-reference with DG643DY-E3 for non-tape-and-reel packaging variants if reel quantities are not required.
