DG429DN-E3

Analog Switches, Multiplexers, Demultiplexers Overview

The DG429DN-E3 is a differential 4-channel latchable analog multiplexer manufactured by Vishay Siliconix. It features on-chip address and control latches to simplify microprocessor-based designs. The device operates with dual supplies of ±15 V or a single supply up to 12 V, supporting an analog signal range from 0 V to 12 V in single-supply mode. Key electrical parameters include a maximum drain-source on-resistance (RDS(on)) of 150 Ω at room temperature and 250 ns transition time. It offers low charge injection of 1 pC and high off-isolation of -75 dB. The component is housed in a 20-pin PLCC package and functions within a temperature range of -40 °C to +85 °C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• On-chip TTL-compatible address and control latches for simplified bus interfacing
• Break-before-make switching action to prevent momentary crosstalk between adjacent inputs
• Low power consumption and low charge injection for improved system accuracy
• High-speed operation with fast transition times suitable for data acquisition systems

Analog Switches, Multiplexers, Demultiplexers Applications

• Data Acquisition Systems
• Automatic Test Equipment
• Avionics and Military Systems
• Microprocessor-Controlled Analog Systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix DN indicates the 20-pin PLCC package configuration when sourcing replacements. Confirm RoHS compliance status as the -E3 suffix denotes lead-free manufacturing. Check current availability as this component may be subject to discontinuation notices or limited stock depending on the distributor. Ensure the operating temperature range meets the application requirements before finalizing procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the DG429DN-E3 when differential signal routing is required in a compact surface-mount layout. Compare RDS(on) specifications against load requirements to ensure signal integrity. Verify that the 20-pin PLCC footprint matches the PCB design constraints. Consider the latch functionality to reduce digital interface complexity compared to non-latched alternatives like the DG409 series.

Analog Switches, Multiplexers, Demultiplexers Part Context

The DG429DN-E3 belongs to the DG4xx family of latchable analog multiplexers from Vishay Siliconix. It is functionally similar to the DG409 but includes internal latches for address and control lines. This integration reduces external logic components in microprocessor-controlled environments. The DN suffix specifically identifies the 20-lead Plastic Leadless Chip Carrier package variant within the broader DG428/DG429 product line.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

DG429DJ-E3: Pin-compatible alternative in 18-pin DIP package.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the difference between the DG429 and DG409?

The DG429 includes on-chip address and control latches, whereas the DG409 does not. This allows the DG429 to hold switch states without continuous refreshing from the host controller.

Can the DG429DN-E3 operate with a single supply?

Yes, it supports single-supply operation up to 12 V. In this mode, the analog signal range is 0 V to 12 V.

What is the purpose of the EN pin?

The Enable (EN) pin allows the user to reset the multiplexer to all switches off, which is useful for stacking multiple devices or ensuring a known state during system initialization.