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DG409LDY-E3
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Product Detailed Parameters
- Description：IC SWITCH SP4T X 2 29OHM 16SOIC
- Series：-
- Mfr：Vishay Siliconix
- Package：Bulk
- Switch Circuit：SP4T
- Multiplexer/Demultiplexer Circuit：4:01
- On-State Resistance (Max)：29Ohm
- Channel-to-Channel Matching (ΔRon)：1Ohm
- Voltage - Supply, Single (V+)：2V ~ 12V
- Voltage - Supply, Dual (V±)：±3V ~ 6V
- Switch Time (Ton, Toff) (Max)：55ns, 25ns
- -3db Bandwidth：-
- Charge Injection：1pC
- Channel Capacitance (CS(off), CD(off))：7pF, 20pF
- Current - Leakage (IS(off)) (Max)：1nA
- Crosstalk：-82dB @ 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：2
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Overview
The DG409LDY-E3 is a dual 4-channel differential analog multiplexer manufactured by Vishay Siliconix. It operates on single supplies from 2.7 V to 12 V or dual supplies of ±3 V to ±6 V. The device connects one of four differential inputs to a common dual output via a 2-bit binary address (A0, A1). Key electrical parameters include a typical on-resistance of 17 Ω, enable turn-on time of 38 ns, and enable turn-off time of 18 ns. Leakage current is limited to 1 nA maximum at room temperature. It features break-before-make switching, 2000 V ESD protection, and operates within a -40 °C to +85 °C temperature range in a 16-pin SOIC package.
Feature Summary
- Pin-for-pin compatible with industry standard DG408 and DG409 devices
- Guaranteed break-before-make switching action prevents momentary crosstalk between adjacent channels
- Low charge injection of 1 pC minimizes signal distortion during switching events
- Supports TTL, CMOS, and LV logic interfaces for simplified control integration
Applications
- Data acquisition systems
- Battery operated equipment
- Portable test equipment
- Sample and hold circuits
- Audio and video signal routing
Procurement Notes
Verify the specific suffix 'E3' confirms RoHS compliance when sourcing this component. Confirm that the 'DY' designation matches the required 16-pin narrow SOIC package dimensions for your PCB layout. Ensure the operating voltage requirements align with the specified 2.7 V to 12 V single supply range.
Selection Notes
Select the DG409LDY-E3 when differential signal routing is required within a compact surface-mount footprint. This part is suitable for low-voltage applications where power consumption must be minimized due to its microampere-level supply current. Verify that the 17 Ω typical on-resistance meets the signal integrity requirements of your specific circuit design.
Part Context
This component belongs to the DG408L/DG409L series, which are low-voltage improvements over the legacy DG408/DG409 parts. While the DG408L provides an 8-channel single-ended configuration, the DG409L specifically offers dual 4-channel differential multiplexing capabilities. Both share identical pinouts and BiCMOS fabrication technology.
Replacement Considerations
DG409LDY-T1-E3
FAQ
What is the maximum analog signal range for the DG409LDY-E3?
The analog signal range extends from V- to V+, allowing it to handle signals across the entire supply voltage span.
How does the DG409LDY-E3 prevent crosstalk between channels?
It utilizes guaranteed break-before-make switching action, which ensures that the previous channel disconnects before the new channel connects.
What logic levels are compatible with the digital control inputs?
The device supports TTL, CMOS, and LV logic (3 V) compatibility, with defined thresholds for logic high and low states relative to the positive supply voltage.
