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DG418LDY-T1-E3
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Product Detailed Parameters
- Description：IC SWITCH SPST-NOX1 20OHM 8SOIC
- Series：-
- Mfr：Vishay Siliconix
- Package：Tape & Reel (TR)
- Switch Circuit：SPST - NO
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：20Ohm
- Channel-to-Channel Matching (ΔRon)：-
- Voltage - Supply, Single (V+)：2.7V ~ 12V
- Voltage - Supply, Dual (V±)：±3V ~ 6V
- Switch Time (Ton, Toff) (Max)：43ns, 31ns
- -3db Bandwidth：-
- Charge Injection：1pC
- Channel Capacitance (CS(off), CD(off))：5pF
- Current - Leakage (IS(off)) (Max)：1nA
- Crosstalk：-71dB @ 1MHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Number of Circuits：1
- Grade：-
- Qualification：-
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Overview
The DG418LDY-T1-E3 is a single-channel SPST analog switch IC manufactured by Vishay Siliconix. It operates within a dual supply voltage range of ±15 V and supports single supply configurations. The device features a maximum on-resistance of 18.5 Ohms, with a typical power dissipation of 400 mW. Switching performance includes a maximum turn-on time of 41 ns and a maximum turn-off time of 32 ns. It accommodates a DC switch current of 30 mA and maintains a maximum supply current of 1 uA. The component functions reliably across an operating temperature range from -40°C to +85°C and is housed in an SOIC-8 surface-mount package.
Feature Summary
- Single-pole single-throw (SPST) configuration for precise signal path control
- Low power consumption suitable for battery-operated applications
- High-speed switching capabilities for dynamic signal routing
Applications
- Data acquisition systems requiring low-power analog switching
- Signal multiplexing in instrumentation circuits
- Audio and video signal routing applications
Procurement Notes
This component is officially listed as End-of-Life (EOL) by the manufacturer. Verification of availability should focus on obsolete stock or alternative sourcing channels rather than standard production lines. Buyers must confirm the authenticity of remaining inventory through authorized distributors or certified secondary market suppliers to ensure compliance with RoHS standards and functional integrity before integration into designs.
Selection Notes
Designers should evaluate the 18.5 Ohm on-resistance limit against signal integrity requirements, as this value may introduce attenuation in high-impedance circuits. The ±15 V dual supply specification dictates power rail design constraints. For lower resistance needs, consider the DG418LE variant; for higher speed, the DG411 series offers improved transition times. Ensure thermal management accounts for the 400 mW power dissipation rating under worst-case load conditions.
Part Context
Part of the DG41x family of CMOS analog switches, the DG418LDY-T1-E3 represents a specific tape-and-reel variant of the DG418. It shares architectural similarities with other devices in the series but differs in packaging and shipping format. The suffix 'T1' indicates reel packaging, while 'E3' denotes lead-free composition compliant with environmental directives. This part serves as a legacy solution for older designs utilizing SOIC-8 footprints.
Replacement Considerations
The DG418LEDY-T1-GE4 is documented as a recommended alternative with similar specifications. Verify pin compatibility and electrical parameters such as on-resistance and switching speeds when substituting. The DG418BDY-E3 offers comparable functionality in tube packaging. Cross-reference datasheets to ensure voltage ratings and thermal characteristics align with existing circuit constraints.
