DG1408EEN-T1-GE4

Overview

The DG1408EEN-T1-GE4 is a precision analog multiplexer featuring eight single-ended channels, manufactured by Vishay Siliconix. Built on a CMOS process, it provides low on-resistance of 3.2 Ω typical and 4.7 Ω maximum at 25 °C, with an on-resistance flatness of 0.5 Ω. The device supports single supply operation from 4.5 V to 24 V or dual supplies from ± 4.5 V to ± 16.5 V. It includes an enable function, break-before-make switching, and low voltage logic compatibility (VIH = 2 V, VIL = 0.8 V). Packaged in a compact QFN16 (4 mm x 4 mm) format, it offers rail-to-rail signal handling and low charge injection.

Feature Summary

• Low on-resistance of 3.2 Ω typical with high linearity
• Break-before-make switching action prevents crosstalk
• Compatible with low-voltage TTL/CMOS logic inputs
• Supports both single and dual power supply configurations

Applications

• Medical and healthcare equipment
• Data acquisition systems
• Industrial control and automation
• Test and measurement equipment
• Battery powered systems

Procurement Notes

Verify the complete part number against official Vishay documentation to ensure correct package variation and tape-and-reel specifications. Confirm RoHS compliance status and material categorization requirements prior to ordering. Cross-reference the manufacturer's ordering information to validate availability and lead times for the specific suffix configuration.

Selection Notes

Select this component when designing circuits requiring precise analog signal routing with minimal distortion. Ensure the operating voltage range aligns with the system's single or dual supply capabilities. Verify that the digital control interface meets the specified VIH and VIL thresholds for reliable switching. Consider the thermal resistance and power dissipation limits for the intended ambient temperature conditions.

Part Context

This part belongs to the DG1408/DG1409 family of precision multiplexers. The DG1408 variant specifically provides an 8:1 multiplexing configuration, whereas the DG1409 offers a dual 4:1 setup. Both share the same QFN16 package and core CMOS technology, differing primarily in channel count and address decoding logic.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Vishay technical support for alternative components with similar electrical characteristics if this specific part number becomes unavailable.

FAQ

What is the maximum continuous switch current rating?

The maximum continuous switch current is 250 mA at an ambient temperature of 25 °C.

Does the device require a separate VL logic supply?

No, the DG1408 does not require a separate VL logic supply; all digital inputs have integrated thresholds compatible with low-voltage logic.

How does the device prevent momentary crosstalk between channels?

It utilizes a break-before-make switching action, which ensures that one channel disconnects before another connects, preventing momentary crosstalk.