DG409AK

Overview

The DG409AK is a high-performance analog multiplexer switch manufactured by Analog Devices Inc./Maxim Integrated. It features four differential channels configured as two 4:1 multiplexers within a single package. The device utilizes CMOS technology to support dual power supplies ranging from ±5V to ±20V or a single supply of 5V to 36V. Key electrical specifications include a maximum on-resistance of 100 ohms, a turn-on time of 150ns, and a turn-off time of 150ns. It operates reliably across an extended temperature range of -55°C to +125°C.

Feature Summary

• Four-channel differential multiplexer architecture providing two independent 4:1 switching paths
• High-speed switching capability with 150ns transition times for both turn-on and turn-off operations
• Extended industrial temperature rating supporting operation down to -55°C
• Dual supply voltage flexibility accommodating both bipolar and unipolar power configurations

Applications

• Data acquisition systems requiring precise signal routing
• Automatic test equipment for channel selection
• Sample and hold circuits in measurement instrumentation
• Hi-Rel systems demanding robust analog switching performance

Procurement Notes

Verify component authenticity through authorized distributors or certified secondary market suppliers. Request original manufacturer documentation including RoHS compliance certificates and material declarations. Confirm the specific suffix indicates the ceramic DIP package variant. Validate lot traceability and storage history to ensure moisture sensitivity integrity prior to installation.

Selection Notes

Select this component when differential signal integrity is critical compared to standard single-ended switches. Ensure the design accommodates the CDIP-16 package footprint and thermal requirements. Verify that the system power rails align with the ±5V to ±20V operating range. Consider the 100-ohm on-resistance impact on signal attenuation for low-voltage applications.

Part Context

This part belongs to the DG409 family of CMOS analog multiplexers. It serves as the hermetically sealed ceramic package variant of the DG409 series. The device complements other members like the DG409C/D die and DG409EUE+ plastic TSSOP version. It provides a rugged solution for environments where standard plastic packages are unsuitable.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data.