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DG444BDY-T1
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Product Detailed Parameters
- Description：IC SWITCH SPST-NCX4 80OHM 16SOIC
- Series：-
- Mfr：Vishay Siliconix
- Package：Tape & Reel (TR)
- Switch Circuit：SPST - NC
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：80Ohm
- Channel-to-Channel Matching (ΔRon)：-
- Voltage - Supply, Single (V+)：13V ~ 36V
- Voltage - Supply, Dual (V±)：±7V ~ 22V
- Switch Time (Ton, Toff) (Max)：300ns, 200ns
- -3db Bandwidth：-
- Charge Injection：1pC
- Channel Capacitance (CS(off), CD(off))：5pF, 5pF
- Current - Leakage (IS(off)) (Max)：500pA
- Crosstalk：-95dB @ 100kHz
- 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：4
- Grade：-
- Qualification：-
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Overview
The DG444BDY-T1 is a monolithic quad SPST CMOS analog switch manufactured by Vishay Siliconix in a 16-pin narrow SOIC package. It provides high-speed switching with a typical turn-on time of 120 ns and a maximum on-resistance of 80 Ω at room temperature, extending to 95 Ω across the full operating range. The device supports dual supplies from ±5 V to ±15 V or a single supply up to 12 V. Key electrical parameters include a maximum power dissipation of 640 mW, a continuous current rating of 30 mA, and an input leakage current of 1 µA. It operates within a temperature range of -40 °C to +85 °C.
Feature Summary
- Low charge injection design minimizes pedestal errors for sample-and-hold applications
- TTL and CMOS-compatible logic simplifies digital interfacing
- Epitaxial layer construction prevents latchup for improved reliability
Applications
- Data acquisition systems
- Communication systems
- Automatic test equipment
- Medical instrumentation
- Audio switching circuits
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to confirm the tape and reel packaging configuration. Confirm RoHS compliance status as indicated in the latest datasheet revision. Ensure the component meets the required lead-free specifications for the target assembly process.
Selection Notes
Select this component when low signal distortion and fast switching speeds are critical requirements. The 16-pin SOIC package offers a compact footprint suitable for surface-mount designs. Verify that the analog signal voltage range remains within the specified supply limits to prevent internal diode clamping effects.
Part Context
This part belongs to the DG444B/DG445B series, representing an upgrade to the original DG444 and DG445 models. It utilizes Vishay Siliconix's high-voltage silicon-gate process technology. The device is designed specifically for high-performance analog signal routing where speed and low error rates are prioritized over ultra-low on-resistance values.
Replacement Considerations
The DG444BDY-E3 serves as a direct pin-compatible alternative with identical electrical characteristics but may differ in packaging format. Other members of the DG444B family share functional similarities but require verification of package type and specific parameter tolerances before substitution.
