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Product Detailed Parameters
- Description：IC SWITCH SPST-NCX4 85OHM 16SOIC
- Series：-
- Mfr：Vishay Siliconix
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPST - NC
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：85Ohm
- Channel-to-Channel Matching (ΔRon)：1.7Ohm
- Voltage - Supply, Single (V+)：4V ~ 44V
- Voltage - Supply, Dual (V±)：±4V ~ 22V
- Switch Time (Ton, Toff) (Max)：200ns, 150ns
- -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
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Overview
The DG309DY-T1-E3 is a dual single-pole double-throw (SPDT) analog switch manufactured by Vishay Siliconix. It utilizes CMOS technology to provide low on-resistance and high bandwidth for signal routing applications. The device operates with a single supply voltage ranging from 4.5 V to 26 V or dual supplies of ±2.25 V to ±13 V. Key electrical specifications include an on-resistance of typically 12 ohms, a breakdown voltage of 26 V, and a charge injection of 1.5 pC. It features low power consumption with an off-state leakage current of 1 nA at 25°C. The component is housed in a surface-mount SOIC-16 package.
Feature Summary
- Dual SPDT configuration enables independent control of two signal paths within a single integrated circuit.
- CMOS construction ensures low power dissipation and compatibility with standard logic levels.
- High bandwidth supports efficient transmission of video and audio frequency signals without significant attenuation.
Applications
- Video switching matrices for routing composite or component video signals
- Audio signal multiplexing and source selection systems
- Data acquisition systems requiring analog signal path isolation
Procurement Notes
Verify the specific suffix against official Vishay documentation to confirm pinout and electrical tolerances. Confirm RoHS compliance status through the manufacturer's current product change notices. Check for obsolescence notifications as legacy CMOS switches may have limited production runs. Ensure the SOIC-16 footprint matches the target PCB design guidelines.
Selection Notes
Select this component when dual isolated signal paths are required in a compact form factor. Compare on-resistance flatness if signal linearity is critical for the application. Evaluate the operating voltage range to ensure compatibility with the system's power supply rails. Consider the thermal performance of the SOIC-16 package under continuous load conditions.
Part Context
The DG309 belongs to the DG series of analog switches from Vishay Siliconix, designed for general-purpose signal switching. This series is characterized by its robust CMOS process technology and wide operating voltage range. The DG309 specifically addresses applications needing two independent SPDT switches, distinguishing it from single-channel or multiplexer variants within the same family.
Replacement Considerations
Official substitutes include the DG308 and DG309A. Verify pin compatibility and electrical parameter equivalence before substitution. Cross-reference datasheets to ensure the alternative meets the specific on-resistance and bandwidth requirements of the original design.
