MAX4534CUD+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4534CUD+ is a single 4-to-1 fault-protected multiplexer in a 14-pin TSSOP package. It operates with ±4.5V to ±20V dual supplies or +9V to +36V single supply. The device features ±40V overvoltage protection with power off and ±25V protection with power on. On-resistance is 400 Ω max, matched between channels to 10 Ω max. Digital inputs have TTL logic thresholds for compatibility with single +12V or dual ±15V supplies.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Fault-protected analog signal handling with rail-to-rail capability
• TTL/CMOS-compatible logic inputs ensuring broad digital interface support
• No power-supply sequencing required for operation

Analog Switches, Multiplexers, Demultiplexers Applications

• Data-Acquisition Systems
• Industrial and Process Control
• Avionics
• Signal Routing
• Redundant/Backup Systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the component matches the specific CUD suffix for the 14-pin TSSOP package and the commercial temperature range of 0°C to +70°C. Confirm that the ordering information aligns with the manufacturer's current documentation to ensure correct pinout and electrical specifications are met for the intended application design.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this part when high-voltage fault protection is required for analog signals exceeding standard supply rails. Ensure the application utilizes a single 4-to-1 configuration rather than the dual 2-to-1 MAX4535 variant. Verify that the maximum on-resistance and leakage currents meet the system's precision requirements under the expected operating temperature conditions.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX4534/MAX4535 family of fault-protected, high-voltage multiplexers manufactured by Analog Devices Inc./Maxim Integrated. The MAX4534 specifically provides a single 4-to-1 switching function, while the MAX4535 offers dual 2-to-1 switching. Both share similar fault-protection architectures and electrical characteristics.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Public confirmed substitute part numbers include MAX4534CSD+, MAX4534EUD+, and MAX4534ESD+. These variants offer different package types (SOIC) or extended temperature ranges (-40°C to +85°C). Verify pin compatibility and thermal performance before substitution.

Analog Switches, Multiplexers, Demultiplexers FAQ

Are all pins fault-protected?

No, only the NO_ pins are fault-protected. The GND, COM_, EN, and A_ pins do not have fault protection and are clamped by internal ESD diodes.

What is the recovery time after a fault condition?

The typical fault recovery time is 2.5µs for positive faults and 1.3µs for negative faults. This depends on the COM_ output resistance and capacitance.

Can the supplies be asymmetrical?

Yes, the V+ and V- supplies need not be symmetrical, but their sum cannot exceed the 44V absolute maximum rating.