MAX4639EUE+T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4639EUE+T is a dual 4:1 CMOS analog multiplexer/demultiplexer manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +1.8V to +5.5V supply or dual ±2.5V supplies. The device features a typical on-resistance of 3.5Ω at +5V and 6Ω at +3V, with a maximum transition time of 20ns. It provides -85dB crosstalk and -75dB off-isolation at 1MHz. The component supports bidirectional signal handling, TTL/CMOS logic compatibility, and break-before-make switching. It is housed in a 16-pin TSSOP package and functions within an operating temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual 4:1 multiplexing architecture with standard BCD decoding
• Rail-to-Rail analog signal handling capability
• Guaranteed low leakage currents across the operating temperature range

Analog Switches, Multiplexers, Demultiplexers Applications

• Automatic Test Equipment
• Low-Voltage Data-Acquisition Systems
• Audio and Video Signal Routing
• Medical Equipment
• Battery-Powered Equipment

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and RoHS compliance status. Confirm that the 'T' suffix indicates tape and reel packaging. Ensure the E-grade designation matches the required industrial temperature range specifications for the intended deployment environment.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a dual-channel 4:1 multiplexing solution is required for low-voltage systems. Verify that the 3.5Ω on-resistance meets the signal integrity requirements. Ensure the control interface aligns with available TTL or CMOS logic levels. Consider the 16-pin TSSOP footprint constraints during PCB layout planning.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4638/MAX4639 family of low-voltage analog multiplexers. While the MAX4638 offers a single 8:1 configuration, the MAX4639 provides two independent 4:1 channels. Both share identical electrical characteristics regarding speed, resistance, and power consumption, differing primarily in channel count and address pin configuration.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

MAX4639ETE+T (16-pin TQFN)

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the maximum voltage difference allowed between V+ and V-?

The absolute maximum rating specifies that the difference between V+ and V- must not exceed 6V.

How does the device handle overvoltage conditions on analog pins?

Signals on COM_ and NO_ exceeding V+ or V- are clamped by internal protection diodes. External blocking diodes may be added if proper power-supply sequencing cannot be guaranteed.

Is the switching action simultaneous or sequential?

All channels guarantee break-before-make switching to prevent short circuits between inputs during transitions.