MAX4618EUE+T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4618EUE+T is a high-speed, low-voltage CMOS analog multiplexer IC configured as two independent 4-channel multiplexers. It operates on a single +2V to +5.5V supply and supports rail-to-rail analog signals. The device features fast switching times with a maximum turn-on time of 15ns and turn-off time of 10ns at +25°C. On-resistance is guaranteed at 10Ω max (+5V) and 20Ω max (+3V), with channel matching within 1Ω. It offers low off-leakage current (1nA at +25°C), low crosstalk (<-96dB), and high off-isolation (<-93dB). Digital inputs are TTL/CMOS compatible, and the component is housed in a 16-pin TSSOP package.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Pin-compatible with industry-standard 74HC4051/74HC4052/74HC4053 and MAX4581/MAX4582/MAX4583 for direct replacement in existing designs.
• Guaranteed low on-resistance and tight channel-to-channel matching ensures minimal signal distortion across varying supply voltages.
• Low leakage currents and high off-isolation characteristics maintain signal integrity in sensitive data-acquisition and communication circuits.

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

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'E' indicates an extended temperature range of -40°C to +85°C, distinct from the commercial 'C' variant. Confirm the '+T' suffix denotes tape-and-reel packaging rather than cut tape or tube. Ensure the ordering code matches the exact pin count and package type required for your PCB footprint.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when dual 4:1 multiplexing is required within a single 16-pin package. Consider the MAX4618EUE+T over standard logic switches if lower on-resistance and superior high-frequency performance are necessary. Verify that the system's analog signal range remains within the single-supply limits of VCC and GND to avoid forward-biasing internal ESD diodes.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4617/MAX4618/MAX4619 family of high-speed, low-voltage CMOS analog switches manufactured by Analog Devices / Maxim Integrated. While electrically similar to legacy 74HC series devices, it offers improved switching speeds and lower on-resistance. The MAX4618 specifically provides two independent 4-channel multiplexers, whereas the MAX4617 offers a single 8-channel configuration.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

MAX4618CUE+T

Analog Switches, Multiplexers, Demultiplexers FAQ

How does the MAX4618 handle analog signals exceeding the VCC supply voltage?

Internal reverse ESD-protection diodes clamp any analog signal exceeding VCC or GND. If signals exceed these limits, the diodes conduct, potentially causing leakage current issues unless external blocking diodes are added for overvoltage protection.

What is the break-before-make time for the MAX4618EUE+T?

The typical break-before-make time is 1.5ns, with a maximum of approximately 2ns under standard test conditions (RL = 300Ω, CL = 35pF).

Is the MAX4618EUE+T directly compatible with 74HC logic families?

Yes, it is pin-compatible with industry-standard 74HC4051/74HC4052/74HC4053 devices. However, designers should note that while the pinout and logic diagrams are identical, the electrical specifications such as on-resistance and speed differ significantly.