MAX337CWI+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX337CWI+ 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 via a 3-bit binary address and supports bidirectional signal flow. The device operates from a single +4.5V to +30V supply or dual ±4.5V to ±20V supplies, with TTL-compatible control inputs (0.8V to 2.4V). Key electrical specifications include a maximum on-resistance of 700Ω at +25°C under single-supply conditions, off-leakage current less than 6.5nA across the commercial temperature range (-1.25nA to +1.25nA), and typical charge injection of 10pC. Transition times reach up to 600ns, while enable turn-on/off times are capped at 750ns.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Offers extremely low off-leakage currents and guaranteed low charge injection for high-fidelity signal integrity.
• Features robust electrostatic discharge protection exceeding 2000V per Method 3015.7 standards.
• Provides pin-compatible upgrades for industry-standard DG506 and DG507 devices.

Analog Switches, Multiplexers, Demultiplexers Applications

• Precision Data Acquisition
• Precision Signal Routing
• Test Equipment

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify that the specific ordering suffix matches the required thermal grade and package style. Confirm RoHS compliance status through official manufacturer documentation. Ensure the component meets the intended operating temperature range requirements before finalizing procurement decisions.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this part when a dual 8-channel configuration is required in a compact surface-mount footprint. Verify that the 700Ω on-resistance limit aligns with system voltage drop constraints. Ensure the logic input thresholds remain compatible with the host microcontroller's voltage levels.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX336/MAX337 family of low-leakage CMOS analog multiplexers manufactured by Analog Devices/Maxim Integrated. The MAX337 variant specifically provides dual 8-channel switching capabilities, distinguishing it from the single 16-channel MAX336 model while sharing identical core architecture and performance characteristics.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX337CWI+ serves as a direct pin-compatible replacement for the DG507. Designers should verify that alternative sources maintain equivalent leakage specifications and ESD protection ratings to ensure circuit reliability remains uncompromised during substitution.

Analog Switches, Multiplexers, Demultiplexers FAQ

Is the MAX337CWI+ suitable for single-supply operation?

Yes, the device operates from a single +4.5V to +30V supply. For single-supply applications, the V- pin must be connected to GND.

What is the maximum analog signal range for the MAX337CWI+?

The analog signal range extends from V- to V+. In dual supply mode (±15V), the range is -15V to +15V. In single supply mode (+12V), the range is 0V to +12V.

How does the MAX337CWI+ handle overvoltage conditions?

Signals on any terminal exceeding V+ or V- are clamped by internal diodes. To prevent damage, forward current must be limited to the maximum rating, typically using external blocking diodes if power sequencing cannot be controlled.