MAX397CPI

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX397CPI is a dual, 8-channel low-voltage CMOS analog multiplexer housed in a 28-pin Plastic DIP package. It operates with a single supply from +2.7V to +16V or dual supplies of ±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 within 6Ω at +25°C and 8Ω over the operating temperature. Switching speeds include a transition time of up to 250ns and enable turn-on/off times reaching 250ns and 200ns respectively. Charge injection is limited to 5pC.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Pin-compatible with industry standard MAX306/MAX307, DG406/DG407, and DG506A/DG507A devices.
• Offers 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
• Sample-and-Hold Circuits

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'CPI' corresponds to the 28-pin Plastic DIP package and the commercial temperature range of 0°C to +70°C. Confirm that the ordering information matches the required pinout for dual 8-channel operation rather than the single 16-channel configuration found in the MAX396 variant.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a dual 8-channel architecture is required instead of a single 16-channel layout. Ensure the application voltage stays within the +2.7V to +16V single-supply or ±2.7V to ±8V dual-supply limits. Consider the 100Ω on-resistance limit if driving significant current loads.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX396/MAX397 family of precision analog switches. While the MAX396 provides a single 16-channel configuration, the MAX397 splits these into two independent 8-channel sets. Both share identical fabrication processes and electrical characteristics, differing primarily in channel grouping and pin assignments.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Public confirmed substitutes include the MAX307, DG407, and DG507A due to explicit pin compatibility noted in the datasheet.

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 at +25°C and 13Ω across the full operating temperature 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 are otherwise electrically similar and pin-compatible.

Is the MAX397 compatible with TTL logic inputs?

Yes, the device retains CMOS-logic input compatibility and supports TTL levels with a Logic High Input Voltage of 2.4V and Logic Low of 0.8V.