MAX4609ESE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4609ESE+ is a dual-channel CMOS analog switch in a 16-pin Narrow SOIC package, operating from -40°C to +85°C. It features one normally open (NO) and one normally closed (NC) SPST circuit. The device supports single supplies of +4.5V to +36V or dual supplies of ±4.5V to ±20V. Key electrical parameters include a maximum on-resistance of 2.5Ω, an on-resistance match between channels of 0.5Ω max, and off-leakage current of 2.5nA max at +85°C. Switching times are 110ns turn-on and 150ns turn-off.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual SPST configuration with mixed NO/NC logic states
• Low on-resistance with guaranteed channel matching and flatness
• Rail-to-rail signal handling capability
• TTL/CMOS-compatible digital control inputs

Analog Switches, Multiplexers, Demultiplexers Applications

• Reed relay replacement
• PBX and PABX systems
• Test equipment
• Audio-signal routing
• Communication systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'E' for industrial temperature range (-40°C to +85°C) and 'SE' for the narrow SOIC package. Confirm RoHS compliance by checking for the '+' designation. Ensure the ordering documentation matches the required logic state combination of one NO and one NC switch per channel.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a mixed NO/NC dual-switch topology is required within a compact surface-mount footprint. Verify that the 2.5Ω on-resistance meets the signal integrity requirements for the target application voltage range. Consider the TTL/CMOS input thresholds if interfacing directly with standard logic families without level shifting.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4607/MAX4608/MAX4609 family of 2.5Ω dual analog switches. While the MAX4607 offers two NC switches and the MAX4608 provides two NO switches, the MAX4609 specifically combines one of each type. All variants share identical electrical characteristics and pinouts, differing only in internal logic configuration.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct functional replacements within the same package and temperature range include the MAX4607ESE+ and MAX4608ESE+. Note that these substitutes provide different logic states (all NC or all NO) compared to the mixed configuration of the MAX4609. Verify that the specific NO/NC requirement can be accommodated by alternative circuit designs if using these substitutes.