MAX4509CPE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4509CPE+ is a dual 4-to-1 fault-protected multiplexer housed in a 16-pin Plastic DIP package. It operates with dual supplies of ±4.5V to ±20V or a single supply of +9V to +36V. The device features an on-resistance of 400 Ω max, matched between channels to 15 Ω max. It provides ±40V overvoltage protection with power off and ±25V protection with power on. Logic inputs are TTL/CMOS compatible.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Fault-protected analog signal handling with rail-to-rail capability
• Output clamping during overvoltage conditions
• TTL and CMOS logic input compatibility

Analog Switches, Multiplexers, Demultiplexers Applications

• Data-acquisition systems
• Industrial and process control
• Avionics
• Signal routing
• Redundant/backup systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix CPE+ indicates the commercial temperature range (0°C to +70°C) and lead-free plastic DIP packaging. Confirm the manufacturer designation as Analog Devices Inc./Maxim Integrated. Ensure the datasheet revision matches the required specifications for your design implementation.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when dual 4-to-1 switching with high-voltage fault protection is required. Verify that the ±40V fault protection with power off meets system safety requirements. Check that the 400 Ω maximum on-resistance is acceptable for the target signal integrity. Ensure the 16-pin DIP package fits the mechanical constraints.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4508/MAX4509 family of fault-protected multiplexers. The MAX4509 specifically offers a dual 4-to-1 configuration, whereas the MAX4508 provides a single 8-to-1 configuration. Both share pin compatibility with industry-standard DG508/DG509 devices.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4508 is the single-channel equivalent within the same family. Industry-standard DG508/DG509 devices offer pin-compatible alternatives but may lack the specific fault-protection characteristics defined in the MAX4509 datasheet.