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DG444BDJ
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Product Detailed Parameters
- Description：IC SWITCH SPST-NCX4 80OHM 16DIP
- Series：-
- Mfr：Vishay Siliconix
- Package：Bulk
- 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：Through Hole
- Package / Case：16-DIP (0.300", 7.62mm)
- Supplier Device Package：16-PDIP
- Number of Circuits：4
- Grade：-
- Qualification：-
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Overview
The DG444BDJ is a monolithic quad single-pole single-throw (SPST) CMOS analog switch manufactured by Vishay Siliconix. It operates on dual supplies ranging from ±7 V to ±22 V or a single supply of 13 V to 36 V. The device features a typical drain-source on-resistance of 45 Ω, with a maximum of 80 Ω at room temperature and 95 Ω across the full temperature range. Switching speeds include a turn-on time of 120 ns (typical) and a turn-off time of 60 ns (typical). Power consumption is low at 1 mW, and charge injection is minimized to 1 pC.
Feature Summary
- Monolithic quad SPST configuration for high-speed analog signal switching
- Low power consumption and TTL/CMOS-compatible logic control
- Minimized charge injection suitable for sample-and-hold circuits
- Epitaxial layer construction prevents latchup
Applications
- Data acquisition systems
- Communication systems
- Automatic test equipment
- Medical instrumentation
- Audio switching
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status via the specific ordering suffix '-E3'. Validate package integrity upon receipt against standard PDIP dimensions. Ensure storage conditions prevent moisture damage prior to soldering.
Selection Notes
Select this part for applications requiring fast switching and low distortion in data acquisition or medical instrumentation. Verify that the required analog signal range fits within the specified supply voltage limits. Consider thermal derating if operating near the maximum power dissipation limit of 470 mW.
Part Context
This component belongs to the DG444B/DG445B series, which are upgraded versions of the original DG444/DG445 devices. The 'DG444' designation indicates normally open switches, while the 'DG445' variant offers normally closed functionality. Both share identical electrical characteristics and pinouts.
Replacement Considerations
The DG444DJ serves as a non-RoHS equivalent to the DG444BDJ-E3. Other variants in the family include the DG444BDY for surface mount SOIC packages and the DG444BDN-T1-E4 for QFN packages.
