DG429DN

Analog Switches, Multiplexers, Demultiplexers Overview

The DG429DN is a CMOS analog multiplexer switch IC manufactured by Vishay Semiconductors. It features four independent channels configured as two 4-to-1 multiplexers within a PLCC-20 package. The device supports single or dual power supplies, with a maximum supply voltage of 12 V for single operation and 15 V for dual configurations. Key electrical parameters include a maximum on-resistance of 150 Ohms, a typical off-isolation of -75 dB, and a maximum power dissipation of 800 mW. Operating times are limited to 300 ns, with propagation delays ranging from 250 ns to 280 ns. The component functions reliably across an extended temperature range from -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Integrates four independent analog switches into a compact PLCC-20 surface-mount package
• Supports flexible single-supply (up to 12 V) and dual-supply (up to ±7.5 V) operation
• Provides high channel isolation and low power consumption suitable for signal routing

Analog Switches, Multiplexers, Demultiplexers Applications

• Data acquisition systems requiring multi-channel signal selection
• Industrial process control instrumentation
• Medical equipment signal conditioning circuits

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix and RoHS compliance status before ordering, as availability varies by region. Confirm that the PLCC-20 footprint matches the target PCB design. Check current lifecycle status, as this part may be discontinued or subject to last-time buy restrictions depending on the manufacturing date code.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a quad-channel multiplexer is required in a PLCC-20 package. Ensure the application voltage does not exceed 12 V for single supply or 15 V for dual supply. Verify that the 150 Ohm on-resistance meets the signal integrity requirements of the circuit.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the DG4xx series of CMOS analog switches. It serves as a standard solution for general-purpose signal switching applications where moderate speed and high isolation are prioritized over ultra-low resistance.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Publicly documented recommended alternatives include parts from the DG40 and DG42 series families. Verify pin compatibility and electrical specifications before substituting.