DG454EQ-T1-E3

Overview

The DG454EQ-T1-E3 is a high voltage quad SPST CMOS analog switch manufactured by Vishay Siliconix. It features four independently selectable switches with a maximum supply rating of 44 V and an analog signal range extending to ±15 V. The device operates on dual supplies (±5 V, ±15 V) or a single supply (12 V). Key electrical parameters include a typical on-resistance of 4 Ω, a maximum on-resistance of 5.3 Ω at room temperature under full specifications, and a continuous current handling capability of 100 mA. Switching speeds are characterized by a maximum turn-on time of 118 ns and a maximum turn-off time of 97 ns at ±15 V. The component is housed in a 16-pin TSSOP package and supports an operating temperature range from -40 °C to +125 °C.

Feature Summary

• High voltage operation supporting up to 44 V supply ratings and ±15 V analog signal ranges.
• Low on-resistance with high flatness, suitable for low distortion audio applications.
• TTL/CMOS compatible digital logic inputs without requiring a separate VL supply.
• Fast switching speeds combined with high signal bandwidth for video applications.

Applications

• Audio and video signal switching
• Precision automatic test equipment
• Relay replacement
• Sample and hold systems

Procurement Notes

Verify the specific suffix 'EQ' corresponds to the 16-pin TSSOP package variant when sourcing replacements. Confirm that the E3 designation indicates lead-free compliance and RoHS adherence as per Vishay material categorization standards. Ensure the selected distributor provides documentation matching Document Number 74473 for accurate technical validation.

Selection Notes

Select this component when high voltage isolation and low distortion are required in a compact surface-mount form factor. The absence of a VL supply simplifies interface design compared to pin-compatible predecessors like the DG411 series. Verify that the 100 mA continuous current rating meets the load requirements of the specific application circuit.

Part Context

This part belongs to the DG454/DG455/DG456 family of high voltage analog switches. It shares pin compatibility with the DG411, DG412, and DG413 series but eliminates the need for a separate logic supply voltage. The EQ suffix specifically identifies the TSSOP-16 package configuration within the broader product line.

Replacement Considerations

DG411LDQ-T1-E3

FAQ

Does the DG454EQ-T1-E3 require a separate logic supply voltage?

No, the DG454 series does not require a separate VL supply, unlike the pin-compatible DG411 series.

What is the maximum analog signal range supported by this switch?

The device supports an analog signal range extending to the supply rails, fully specified at ±15 V with a maximum supply rating of 44 V.

How does the DG454 differ from the DG455?

They are identical except for the digital logic control input; the DG454 uses non-inverted logic while the DG455 uses inverted logic.