MAX4556ESE

Analog Switches - Special Purpose Overview

The MAX4556ESE is a CMOS analog IC configured as a force-sense switch for Kelvin sensing in automated test equipment. It contains three independent single-pole/double-throw (SPDT) switches, with one designated as a low-resistance force switch and two as higher-resistance sense/guard switches. The device operates from single supplies of +9V to +40V or dual supplies of ±4.5V to ±20V. The force switch features an on-resistance of 6Ω max matched to 1Ω max, while the sense/guard switches have 60Ω max on-resistance matched to 8Ω max. It supports Rail-to-Rail analog signals, offers break-before-make switching, and includes TTL/CMOS-compatible inputs.

Analog Switches - Special Purpose Feature Summary

• Kelvin sensing architecture with separate high-current force paths and precision sense/guard paths
• Break-before-make switching capability to prevent signal shorting during transitions
• Rail-to-Rail analog signal handling across the full supply voltage range
• TTL and CMOS logic input compatibility with defined threshold levels

Analog Switches - Special Purpose Applications

• Automated Test Equipment (ATE)
• Calibrators
• Precision Power Supplies
• Automatic Calibration Circuits
• Asymmetric Digital Subscriber Line (ADSL) with Loopback

Analog Switches - Special Purpose Procurement Notes

Verify the specific suffix ESE confirms the -40°C to +85°C industrial temperature range and narrow SOIC-16 package. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure power supply rails match the specified operational limits to maintain electrical characteristics.

Analog Switches - Special Purpose Selection Notes

Select this component when Kelvin sensing is required for precise voltage forcing and measurement. The MAX4556 provides SPDT functionality with distinct force and sense channels. Verify that the 60Ω sense path resistance meets application requirements compared to the lower resistance force path.

Analog Switches - Special Purpose Part Context

The MAX4556 is part of the MAX4554/MAX4555/MAX4556 family of force-sense switches designed for ATE applications. While the MAX4554 uses 3PST NO switches and the MAX4555 uses SPST NC switches, the MAX4556 specifically utilizes SPDT configurations. All variants share similar power supply ranges and logic interface standards.

Analog Switches - Special Purpose Replacement Considerations

MAX4554CSE

Analog Switches - Special Purpose FAQ

What is the switching configuration of the MAX4556?

The MAX4556 contains three independent single-pole/double-throw (SPDT) switches, consisting of one force switch and two sense switches.

Does the MAX4556 support break-before-make switching?

Yes, the MAX4556 features break-before-make switching to ensure open circuits before making new connections.

What are the on-resistance specifications for the force and sense switches?

The force switch has a maximum on-resistance of 6Ω, while the sense/guard switches have a maximum on-resistance of 60Ω.