MAX337CWI+T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX337CWI+T is a monolithic CMOS analog multiplexer featuring two independent 8-channel configurations within a single 28-pin Wide SO package. It connects one of eight inputs to a common output using a 3-bit binary address and supports bidirectional signal flow for both multiplexing and demultiplexing applications. The device operates from a single +4.5V to +30V supply or dual ±4.5V to ±20V supplies, with TTL-compatible control inputs. Key electrical specifications include a maximum on-resistance of 700Ω under single-supply conditions, transition times up to 600ns, and extremely low off-leakage currents below 20pA at +25°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Features extremely low off-leakage currents and guaranteed low charge injection for high-precision signal integrity.
• Provides robust electrostatic discharge protection exceeding 2000V per method 3015.7.
• Supports flexible power supply configurations including single, dual, and unbalanced voltage rails.

Analog Switches, Multiplexers, Demultiplexers Applications

• Precision data acquisition systems
• Precision signal routing networks
• Test and measurement equipment

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'CWI' corresponds to the commercial temperature range (0°C to +70°C) and the Wide SOIC-28 package format required by the design. Confirm RoHS compliance status associated with the '+' designation in the final part number before procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a dual 8-channel configuration is preferred over a single 16-channel unit. Ensure the application requires an on-resistance of approximately 700Ω under single-supply operation. Verify that the 3-bit address interface aligns with the system's digital control logic capabilities.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX336/MAX337 family of low-leakage CMOS analog multiplexers. It serves as a pin-compatible upgrade for industry-standard DG506 and DG507 devices, offering improved leakage characteristics and ESD protection while maintaining identical physical footprints for direct board-level replacement.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX336CWI+T is a compatible alternative if a single 16-channel configuration is acceptable. Other package variants such as MAX337CAI+ (SSOP) or MAX337EAI+ (extended temperature) may be selected based on thermal and spatial constraints.

Analog Switches, Multiplexers, Demultiplexers FAQ

Is the MAX337CWI+T suitable for use as a demultiplexer?

Yes, the datasheet specifies that the device can function as either a multiplexer or a demultiplexer due to its bidirectional signal conduction capability.

What is the maximum analog signal range for single-supply operation?

When operating with a single supply (e.g., V+ = +12V, V- = 0V), the analog signal range is 0V to 12V.

How does the on-resistance vary with temperature?

The on-resistance increases as temperature decreases; the maximum specified on-resistance rises from 700Ω at +25°C to higher values across the full operating temperature range.