DG409LDQ-E3

Analog Switches, Multiplexers, Demultiplexers Overview

The DG409LDQ-E3 is a dual 4-channel differential analog multiplexer manufactured by Vishay Siliconix. It operates on single supplies from 2.7 V to 12 V or dual supplies of ±3 V to ±6 V. The device connects one of four differential inputs to a common dual output using a 2-bit binary address (A0, A1). Key electrical parameters include a typical on-resistance of 17 Ω, enable turn-on time of 38 ns, and enable turn-off time of 18 ns. Maximum switch off leakage current is 1 nA at room temperature. The component utilizes BiCMOS technology for low power consumption and high accuracy.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Pin-for-pin compatibility with standard DG408 and DG409 devices
• Guaranteed break-before-make switching action to prevent momentary crosstalk
• Low charge injection of 1 pC for improved signal integrity
• TTL, CMOS, and LV logic compatible for simple interface

Analog Switches, Multiplexers, Demultiplexers Applications

• Data acquisition systems
• Battery operated equipment
• Portable test equipment
• Sample and hold circuits
• Audio and video signal routing

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'D' indicates the -40 °C to +85 °C operating range and 'Q' denotes the TSSOP-16 package. Confirm RoHS compliance status via the manufacturer's documentation as ordering suffixes may affect material categorization. Ensure the design supports the required voltage levels for the selected supply configuration.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this part when differential signal routing is required in space-constrained designs due to its compact TSSOP-16 footprint. Verify that the system voltage falls within the 2.7 V to 12 V single supply or ±3 V to ±6 V dual supply limits. Consider the 17 Ω typical on-resistance for signal loss calculations in precision applications.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the DG408L/DG409L series, which are low-voltage companion devices to the industry-standard DG408/DG409. The L-series offers improved performance characteristics including lower on-resistance, faster switching times, and reduced leakage compared to the original versions while maintaining pin compatibility.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

DG409LDY-T1-E3

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the maximum analog signal range for the DG409LDQ-E3?

The analog signal range extends from V- to V+, allowing operation across the full supply voltage range.

How does the DG409LDQ-E3 handle channel switching to prevent interference?

It features guaranteed break-before-make switching action, which prevents momentary crosstalk between adjacent channels during transitions.

What logic families are compatible with the digital control inputs?

The device is compatible with TTL, CMOS, and Low Voltage (LV) logic families operating at 3 V.