MAX397EPI+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX397EPI+ is a dual, 8-channel precision 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 125Ω across the full temperature range. On-resistance matching between channels is guaranteed to be within 6Ω. It offers low charge injection (5pC max) and fast switching speeds, with transition times under 250ns. The component is housed in a 28-pin Plastic DIP package and supports an operating temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Pin-compatible with industry standard MAX307, DG407, and DG507A devices for easy upgrades.
• Provides extremely low charge injection and high electrostatic-discharge protection exceeding 2000V.
• Maintains flat on-resistance over the specified signal range with guaranteed channel-to-channel matching.

Analog Switches, Multiplexers, Demultiplexers Applications

• Automatic Test Equipment
• Communications Systems
• Audio Signal Routing
• Industrial Process Control
• Low-Voltage Data Acquisition Systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify that the specific suffix EPI corresponds to the required 28-pin Plastic DIP package and the extended industrial temperature range of -40°C to +85°C. Confirm compatibility with existing PCB footprints designed for legacy pin-compatible parts like the MAX307 or DG407 before finalizing procurement orders.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this part when a dual 8-channel configuration is required instead of a single 16-channel layout. Ensure the application voltage does not exceed the absolute maximum ratings of ±17V. Consider the 100Ω on-resistance limit for signal integrity requirements and verify that the logic input levels align with the system's TTL/CMOS standards.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX396/MAX397 family of low-voltage CMOS analog multiplexers. While the MAX396 provides a single 16-channel path, the MAX397 splits functionality into two independent 8-channel sets. Both share identical electrical characteristics and are designed for precision applications requiring low distortion and high speed.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Public confirmed substitutes include MAX307, DG407, and DG507A due to direct pin compatibility. Verify that replacement parts meet the specific -40°C to +85°C temperature requirement if using the E-grade variant.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the maximum on-resistance flatness over the signal range?

The on-resistance flatness is guaranteed to be a maximum of 10Ω over the specified signal range.

How does the MAX397 differ from the MAX396?

The MAX397 is a dual 8-channel multiplexer, whereas the MAX396 is a single 16-channel multiplexer. They share the same package and electrical specifications.

Is the MAX397 compatible with TTL logic inputs?

Yes, the device retains CMOS-logic input compatibility and functions with TTL-level signals.