MAX389CPN

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX389CPN+ is a high-voltage, fault-protected analog multiplexer switch IC manufactured by Analog Devices Inc./Maxim Integrated. It features two independent SP4T (2 x 4:1) switching circuits housed in an 18-PDIP package for through-hole mounting. The device operates on dual supplies ranging from ±4.5 V to ±18 V, with a typical operating voltage of 15 V. Key electrical parameters include a maximum on-resistance of 3 kOhms, a channel-to-channel matching of 300 Ohms, and a maximum power dissipation of 889 mW. Switching performance is characterized by a maximum turn-on time of 1.5 µs and a turn-off time of 1 µs. The unit supports a maximum supply current of 2 mA and functions within a temperature range of 0°C to +70°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• High-voltage operation capability supporting dual supplies up to ±18 V
• Integrated fault protection mechanisms for signal integrity
• Dual independent 4:1 multiplexing configurations in a single package

Analog Switches, Multiplexers, Demultiplexers Applications

• Industrial process control systems requiring high-voltage signal routing
• Data acquisition systems utilizing multiplexed sensor inputs
• Test and measurement equipment involving analog signal switching

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix designation when sourcing, as the MAX389CPN may be listed under the MAX389CPN+ variant which indicates RoHS compliance. Confirm the package type is 18-PDIP and ensure the supplier provides official datasheets for the exact part number to guarantee compatibility with high-voltage fault-protected circuit designs.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component for applications requiring robust analog switching with high voltage tolerance and built-in fault protection. Ensure the design accommodates the 3 kOhm on-resistance and the specified dual supply voltage range. Consider the through-hole packaging constraint if space or board layout requirements favor surface-mount alternatives.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX389 series of high-voltage analog switches. It shares functional similarities with other devices in the family but is distinct in its specific 2 x 4:1 configuration and fault-protected architecture. The part is often compared with the MAX388, which offers an 8:1 configuration, while maintaining similar electrical characteristics and packaging options within the same product line.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative high-voltage multiplexers based on pinout and electrical specifications.