DGQ2788AEN-T1-GE4

Overview

The DGQ2788AEN-T1-GE4 is an automotive-grade analog switch manufactured by Vishay Siliconix, qualified to AEC-Q100 Grade 1 standards. It features a dual DPDT or quad SPDT configuration within a miniQFN-16 package measuring 2.6 mm x 1.8 mm x 0.55 mm. Operating on a single supply voltage from 1.8 V to 5.5 V, the device provides a typical on-resistance of 0.37 Ω at 2.7 V and achieves a bandwidth of 338 MHz. Key electrical parameters include a maximum turn-on time of 50 μs, off-isolation of -56 dB at 1 MHz, and power supply current of 24 μA. The component supports signal swings over V+, offers break-before-make switching, and operates reliably across a temperature range of -40 °C to +125 °C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 for high reliability in demanding environments.
• Ultra-low parasitic capacitance and highly matched flat on-resistance for precise signal integrity.
• Break-before-make switching logic prevents signal overlap during channel transitions.
• Integrated power-down protection and latch-up immunity exceeding 300 mA per JESD78.

Applications

• Automotive infotainment systems
• Audio, video, and bus routing
• Industrial automation control
• Medical imaging equipment
• Network and telecommunication infrastructure

Procurement Notes

Verify that the ordering suffix EN-T1-GE4 corresponds exactly to the lead-free miniQFN-16 tape and reel packaging containing 3000 units. Confirm the specific date code and lot traceability markings match project requirements. Ensure compliance with RoHS directives and material categorization definitions provided in Vishay documentation before finalizing procurement orders.

Selection Notes

Select this component when space-constrained designs require high-speed analog switching with minimal signal distortion. The low 0.37 Ω resistance and 338 MHz bandwidth make it suitable for high-frequency applications. Verify that the 1.8 V to 5.5 V supply range aligns with system power rails and that the -40 °C to +125 °C operating temperature meets environmental specifications.

Part Context

This part belongs to the DGQ2788A family of automotive analog switches designed for robust performance in compact form factors. The miniQFN-16 package allows for efficient board space utilization compared to larger traditional packages. It serves as a specialized solution for applications requiring multiple independent signal paths with high isolation and fast switching speeds.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative Vishay models based on pin compatibility and electrical parameter margins if direct substitution is required.

FAQ

What is the maximum continuous current rating for the NO, NC, or COM terminals?

The maximum continuous current rating for any NO, NC, or COM terminal is ±300 mA.

How does the device handle signals exceeding the positive supply voltage?

Signals on the NO, NC, or COM pins exceeding V+ are clamped by internal diodes. Designers must limit the forward diode current to the maximum current ratings specified in the absolute maximum ratings table.

What is the typical propagation delay for rail-to-rail fast edge pulsing signals?

The DGQ2788A features a typical propagation delay of 0.1 ns for rail-to-rail fast edge pulsing signals.