DG2747DN-T1-E4

Analog Switches, Multiplexers, Demultiplexers Overview

The DG2747DN-T1-E4 is a dual single-pole single-throw (SPST) analog switch manufactured by Vishay Siliconix. It operates on a single supply voltage ranging from 1.6 V to 4.3 V and features an ultra-low on-resistance of 0.4 Ω typical at 2.7 V. The device utilizes sub-micro CMOS technology to achieve high performance with low power consumption, supporting continuous currents up to 300 mA. It provides excellent signal integrity with -100 dB crosstalk at 100 kHz and a -3 dB bandwidth of 93 MHz. The component is housed in a compact miniQFN-8L package measuring 1.4 x 1.4 mm.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Ultra-small physical footprint utilizing the miniQFN-8L package for efficient board space usage
• Low voltage logic threshold compatibility allowing operation with various digital control circuits
• High fidelity switching capability characterized by low total harmonic distortion
• Robust electrostatic discharge protection exceeding 7 kV using human body model standards

Analog Switches, Multiplexers, Demultiplexers Applications

• Cellular phones
• Portable media players
• GPS devices
• PCMCIA cards
• Medical and test equipment

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against current manufacturer documentation to ensure correct packaging and compliance status. Confirm that the component meets all necessary environmental regulations required for the target deployment region. Cross-reference the part number with authorized distributors to validate availability and authenticity before finalizing procurement plans.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when designing portable systems requiring minimal board area and low voltage operation. Ensure the application logic levels align with the specified input thresholds for reliable switching. Evaluate thermal dissipation requirements based on the maximum power rating and expected ambient operating temperatures during circuit design.

Analog Switches, Multiplexers, Demultiplexers Part Context

This device belongs to the DG2747/48/49 series of low-voltage analog switches. All variants share identical electrical specifications but differ in internal pin configurations to support normally open or normally closed contact arrangements. The DG2747 specifically implements a dual SPST normally open configuration within the shared family architecture.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct functional equivalents within the same series include the DG2748DN-T1-E4 and DG2749DN-T1-E4. These parts maintain identical electrical parameters but utilize different internal contact states. Verify pinout compatibility before substitution as the external pin assignments vary between these specific part numbers.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the maximum continuous current the DG2747DN-T1-E4 can handle?

The device supports a continuous current of ±300 mA through the NO, NC, or COM terminals.

How does the DG2747DN-T1-E4 interface with digital control logic?

The control inputs are compatible with low voltage digital circuits, featuring a logic high threshold of 1.4 V at a 3 V supply voltage.

What is the off-isolation performance of the switch?

The device achieves an off-isolation of -72 dB at 100 kHz and -52 dB at 1 MHz under standard test conditions.