MAX397EPI

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX397EPI is a dual, 8-channel low-voltage CMOS analog multiplexer manufactured by Analog Devices Inc./Maxim Integrated. It operates with single supplies from +2.7V to +16V or dual supplies from ±2.7V to ±8V. The device features a maximum on-resistance of 100Ω at +25°C and guarantees an on-resistance matching between channels of 6Ω max. It offers low leakage currents, with input off-leakage less than 1nA at +85°C and output off-leakage less than 2.5nA at +85°C. The component supports TTL/CMOS logic inputs and provides electrostatic-discharge protection exceeding 2000V. It is housed in a 28-pin Plastic DIP package and functions within an operating temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Pin-compatible with industry standard MAX306/MAX307, DG406/DG407, and DG506A/DG507A devices.
• Low power consumption with supply current typically below 1µA.
• Guaranteed low charge injection of 5pC maximum.

Analog Switches, Multiplexers, Demultiplexers Applications

• Automatic Test Equipment
• Communications Systems
• Audio Signal Routing
• Industrial Process Control
• Sample-and-Hold Circuits

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'EPI' corresponds to the required -40°C to +85°C temperature range and 28-pin Plastic DIP package configuration. Confirm that the ordering information matches the intended application requirements for dual 8-channel multiplexing. Ensure compatibility with existing system voltage rails and logic levels before finalizing procurement decisions.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a dual 8-channel configuration is required instead of a single 16-channel unit. Verify that the supply voltage range meets the system's needs, as performance varies with lower voltages. Consider the pinout compatibility with legacy designs using MAX307 or DG407 if replacing existing circuitry. Evaluate thermal dissipation requirements based on the chosen package type.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX396/MAX397 family of precision, low-voltage CMOS analog multiplexers. While the MAX396 provides a single 16-channel configuration, the MAX397 offers two independent 8-channel sets. Both share identical electrical characteristics and are designed for applications requiring low on-resistance and high isolation.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Public confirmed substitutes include MAX307, DG407, and DG507A due to pin compatibility. Verify functional equivalence regarding on-resistance and leakage specifications before substitution.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the maximum on-resistance flatness guaranteed for the MAX397EPI?

The on-resistance flatness over the specified signal range is guaranteed to be 10Ω maximum at +25°C.

How does the MAX397 handle overvoltage conditions on supply pins?

Internal diodes clamp signals exceeding V+ or V-. For proper protection during power sequencing, external blocking diodes can be added to series supply pins.

Is the MAX397EPI compatible with TTL logic levels?

Yes, the device features TTL/CMOS compatible logic inputs, accepting a Logic High of ≥2.4V and a Logic Low of ≤0.8V.