DG408LDQ-T1-E3

Overview

The DG408LDQ-T1-E3 is an 8-channel single-ended analog multiplexer manufactured by Vishay Siliconix. It operates on a single supply voltage ranging from 2.7 V to 12 V or dual supplies of ±3 V to ±6 V. The device features a typical drain-source on-resistance (RDS(on)) of 17 Ω and maximum values up to 80 Ω depending on conditions. Switching performance includes enable turn-on times as low as 25 ns and off-times around 20 ns. It utilizes BiCMOS technology for low power consumption, with supply currents typically under 1 µA. The component provides high off-isolation of 82 dB at 1 MHz and supports TTL, CMOS, and LV logic interfaces.

Feature Summary

• Pin-for-pin compatible with industry standard DG408 devices while offering improved electrical performance metrics.
• Utilizes BiCMOS wafer fabrication technology to achieve lower on-resistance, faster switching speeds, and reduced leakage compared to legacy counterparts.
• Incorporates guaranteed break-before-make switching action to prevent momentary crosstalk between adjacent channels during state transitions.

Applications

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

Procurement Notes

Verify the specific suffix 'T1' indicates tape and reel packaging configuration when sourcing. Confirm RoHS compliance status via the manufacturer's documentation as ordering suffixes may denote material composition variations. Ensure the TSSOP-16 package dimensions align with PCB layout requirements before finalizing procurement orders.

Selection Notes

Select this component for applications requiring low voltage operation down to 2.7 V single supply. Consider the 17 Ω typical on-resistance for signal integrity in precision analog paths. Verify that the 82 dB off-isolation meets system noise rejection requirements. Ensure logic levels are compatible with the specified TTL/CMOS inputs across the operating temperature range.

Part Context

This part belongs to the DG408L/DG409L series, which are low-voltage companion devices to the standard DG408/DG409 lines. The DG408L variant specifically provides eight single-ended channels, whereas the DG409L offers dual four-channel differential configurations. Both share the same 16-pin footprint and pinout architecture.

Replacement Considerations

DG408LDY-T1-E3

FAQ

What is the maximum analog signal voltage range for the DG408LDQ-T1-E3?

The analog signal range extends from V- to V+, allowing full rail-to-rail operation within the specified supply voltage limits of 2.7 V to 12 V single supply or ±3 V to ±6 V dual supply.

How does the DG408LDQ-T1-E3 handle channel switching to prevent interference?

The device guarantees break-before-make switching action, which ensures that one channel disconnects before another connects, thereby protecting against momentary crosstalk between adjacent channels.

What is the typical charge injection value for this multiplexer?

The typical charge injection is specified as 1 pC, contributing to high accuracy in signal processing applications.