MAX4558ESE+T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4558ESE+T is a low-voltage CMOS analog multiplexer configured as an 8-to-1 switch in a 16-pin Narrow SO package. It operates on dual supplies of ±2V to ±6V or a single supply of +2V to +12V, supporting Rail-to-Rail analog signals. The device features guaranteed on-resistance of 160Ω at ±5V and 220Ω at +5V, with channel-to-channel matching of 2Ω typical. Off-leakage current is 1nA max at +25°C. Digital inputs are TTL/CMOS compatible with thresholds from +0.8V to +2.4V. Switching times are 150ns turn-on and 120ns turn-off at ±5V. It includes ±15kV ESD protection on signal pins.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Integrated electrostatic discharge (ESD) protection on all analog input and output pins using on-chip silicon-controlled rectifiers.
• Rail-to-Rail analog signal handling capability across the full operating voltage range.
• TTL and CMOS logic compatibility for digital control inputs without requiring external level shifting.
• Pin-compatible replacement for industry-standard 74HC4051, 74HC4052, and 74HC4053 devices.

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery-operated equipment requiring low power consumption
• Audio and video signal routing systems
• Low-voltage data-acquisition systems
• Communications circuits
• High-ESD environments

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix against the manufacturer's ordering information to confirm temperature range and packaging type. The 'E' designation indicates an extended temperature range of -40°C to +85°C. Confirm that the '+T' suffix corresponds to tape-and-reel delivery if automated assembly is required. Ensure the component meets RoHS compliance standards as indicated by the '+' symbol in the part number.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when an 8-to-1 multiplexing function is required within a 16-pin surface-mount footprint. It is suitable for applications needing low leakage currents and high ESD robustness. Verify that the system supply voltage falls within the specified ±2V to ±6V or +2V to +12V ranges. Consider the on-resistance flatness and charge injection specifications if signal integrity is critical for precision analog paths.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX4558 is part of the MAX4558/MAX4559/MAX4560 family of low-voltage CMOS analog switches manufactured by Analog Devices / Maxim Integrated. While the MAX4558 provides a single 8-to-1 multiplexer, the MAX4559 offers a dual 4-to-1 configuration, and the MAX4560 provides triple SPDT switching. All members share similar electrical characteristics and pinouts.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The datasheet explicitly states pin-compatibility with industry-standard 74HC4051, 74HC4052, and 74HC4053 devices. Designers replacing these legacy parts should verify that the lower drive current and different on-resistance characteristics of the MAX4558 meet the application requirements.

Analog Switches, Multiplexers, Demultiplexers FAQ

How does the ESD protection mechanism work?

The device uses on-chip bidirectional silicon-controlled rectifiers (SCRs) between the protected X, Y, Z pins and ground. During an ESD strike, the SCRs turn on to bypass surge current safely to ground, preventing latchup or damage.

What are the digital input logic thresholds?

All digital inputs have logic thresholds ranging from +0.8V to +2.4V. This ensures compatibility with both TTL and CMOS logic levels when operating with a single +5V supply or dual ±5V supplies.

What happens if an analog signal exceeds the supply rails?

Internal reverse ESD-protection diodes connect each analog signal pin to VCC and VEE. If a signal exceeds these limits, one of the diodes conducts. The forward diode current must be limited to the maximum continuous current rating to avoid damage.