MAX338ESE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX338ESE+ is an 8-channel CMOS analog multiplexer in a 16-pin Narrow SO package. It connects one of eight inputs to a common output via a 3-bit binary address. The device operates from single supplies of +4.5V to +30V or dual supplies of ±4.5V to ±20V. Key electrical parameters include a maximum on-resistance of 400Ω at +25°C and 500Ω across the full temperature range, with channel matching of 4Ω to 15Ω. Off-leakage current is less than 20pA at +25°C, and charge injection is typically 1.5pC. Control inputs are TTL compatible (+0.8V to +2.4V).

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Features extremely low off-leakage currents and guaranteed low charge injection for high-fidelity signal switching.
• Provides electrostatic discharge protection exceeding 2000V per method 3015.7.
• Supports bidirectional current flow with pin-compatible upgrades for industry-standard DG508A and DG509A devices.

Analog Switches, Multiplexers, Demultiplexers Applications

• Data-acquisition systems
• Test equipment
• Military radios
• Guidance and control systems
• Sample-and-hold circuits

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against official documentation to confirm the exact temperature range and package variant. Confirm RoHS compliance status as indicated by the plus sign in the part number. Ensure the narrow SOIC footprint matches the target PCB land pattern requirements before finalizing procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when an 8-channel analog switch with low leakage and TTL-compatible logic levels is required. Verify that the maximum on-resistance of 400Ω meets the application's voltage drop constraints. Consider the operating supply voltage range and ensure it aligns with the system's power architecture.

Analog Switches, Multiplexers, Demultiplexers Part Context

This device belongs to the MAX338/MAX339 family of monolithic CMOS analog multiplexers manufactured by Analog Devices/Maxim Integrated. The MAX338 specifically provides an 8-to-1 configuration, whereas the MAX339 offers a dual 4-to-1 arrangement. Both share similar electrical characteristics and fabrication processes.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The datasheet identifies the DG508A and DG509A as industry-standard predecessors that this device upgrades while maintaining pin compatibility. Designers replacing older components should verify that the new on-resistance and leakage specifications meet the original design requirements.

Analog Switches, Multiplexers, Demultiplexers FAQ

Are the control inputs compatible with standard TTL logic levels?

Yes, all control inputs, including address and enable lines, are TTL compatible with logic high levels between +0.8V and +2.4V over the full specified temperature range.

What is the maximum electrostatic discharge protection rating?

The device offers electrostatic discharge (ESD) protection greater than 2000V, tested according to method 3015.7.

Can the MAX338 operate with unbalanced power supplies?

Yes, the device can operate with unbalanced supplies, such as +24V and -5V, provided the difference between V+ and V- does not exceed 44V.