DG1412EEQ-T1-GE4

Overview

The DG1412EEQ-T1-GE4 is a monolithic quad single-pole single-throw (SPST) normally open CMOS analog switch manufactured by Vishay Siliconix. It operates from a single supply of 4.5 V to 24 V or dual supplies of ± 4.5 V to ± 16.5 V. The device features a typical on-resistance of 1.5 Ω with a maximum of 4.4 Ω at +12 V single supply. It supports rail-to-rail signal handling and includes an integrated logic supply. Key dynamic parameters include a turn-on time of up to 260 ns, turn-off time of 120 ns, and charge injection of -41 pC. The component is housed in a TSSOP-16 package and functions within a temperature range of -40 °C to +125 °C.

Feature Summary

• Low on-resistance of 1.5 Ω ensures excellent linearity and low signal distortion across the full signal range.
• Rail-to-rail signal handling capability allows bi-directional switching up to the supply voltage limits.
• Integrated VL supply eliminates the need for external logic level translation, ensuring TTL/CMOS compatibility.

Applications

• Data acquisition systems
• Industrial control and automation
• Medical instrumentation
• Audio and video signal switching

Procurement Notes

Verify the specific ordering suffix against official Vishay documentation to confirm the package type and switch configuration. Ensure that the selected variant matches the required normally open functionality and thermal performance specifications for the intended operating environment.

Selection Notes

Select this component when low insertion loss and minimal signal distortion are critical requirements. Verify that the system power supply falls within the specified 4.5 V to 24 V single or ± 4.5 V to ± 16.5 V dual ranges. Confirm that the TSSOP-16 footprint aligns with the PCB layout constraints.

Part Context

This part belongs to the DG141xE series, which includes variants with different switch configurations such as normally closed (DG1411E) and mixed break-before-make (DG1413E). All members share the same low on-resistance architecture and pinout structure, differing primarily in their internal logic states.

Replacement Considerations

Direct functional substitutes within the same family include DG1411EEQ-T1-GE4 and DG1413EEQ-T1-GE4. Note that these alternatives feature different switch logic states compared to the normally open DG1412E.

FAQ

Does the DG1412EEQ-T1-GE4 require an external logic supply voltage?

No, the device features an integrated VL supply, allowing it to operate directly with standard TTL or CMOS logic levels without additional voltage regulation.

What is the maximum continuous current rating for the switches?

The maximum continuous switch current is rated at 190 mA for the TSSOP-16 package at an ambient temperature of 25 °C.

How does the on-resistance vary with temperature?

The on-resistance increases as temperature rises. At +125 °C, the maximum on-resistance can reach approximately 4.4 Ω under single supply conditions, compared to lower values at room temperature.