MAX4709ESE+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4709ESE+ is a dual 4-to-1 fault-protected multiplexer manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of ±4.5V to ±20V for dual supplies or +9V to +36V for single supply configurations. The device features a maximum on-resistance of 500Ω and an on-resistance match between channels of 20Ω. Fault protection provides ±40V tolerance with power off and ±25V with ±15V supplies. Key dynamic parameters include a maximum enable turn-on time of 400ns, an enable turn-off time of 250ns, and an off-isolation of -70dB at 1MHz. The component is housed in a 16-pin Narrow SO package and supports an operating temperature range from -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Rail-to-rail signal handling capability without requiring power-supply sequencing
• Fault-protected analog inputs that disconnect during overvoltage conditions
• TTL and CMOS logic-compatible digital inputs for versatile control integration

Analog Switches, Multiplexers, Demultiplexers Applications

• Data-acquisition systems
• Industrial and process control environments
• Avionics signal routing
• Redundancy and backup systems
• Automated test equipment (ATE)

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB land patterns for the 16-pin Narrow SOIC footprint. Confirm RoHS compliance status through current datasheet revisions before finalizing procurement specifications.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when dual-channel multiplexing with high-voltage fault tolerance is required. Verify that the application signals remain within the specified rail-to-rail limits. Consider the 500Ω maximum on-resistance impact on signal integrity for high-impedance sources. Ensure logic levels align with the TTL/CMOS thresholds defined for the chosen supply voltage.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4708/MAX4709 family of fault-protected multiplexers. It serves as a pin-compatible alternative to industry-standard DG508/DG509 devices. Unlike similar models such as the MAX4508/MAX4509, it lacks clamp diodes on switch outputs, offering distinct fault response characteristics where the output goes high-impedance rather than clamping during faults.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The DG509 is a pin-compatible industry standard replacement. For lower-voltage applications requiring fault protection, the MAX4711/MAX4712/MAX4713 series are referenced alternatives.