MAX4748EWE+T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4748EWE+T is a low-voltage, quad normally closed (NC) single-pole/single-throw analog switch in a 16-bump wafer-level package. It operates from a single +2V to +11V supply and handles rail-to-rail analog signals. Key electrical parameters include an on-resistance of 50Ω max at +3V and 25Ω max at +5V, with matching under 3.5Ω at +3V. Leakage current is guaranteed below 0.1nA at +25°C. The device features TTL/CMOS logic compatibility, -84dB crosstalk, and -72dB off-isolation at 1MHz. Quiescent power consumption is typically 0.5nW.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Quad normally closed SPST configuration for signal routing
• Rail-to-rail analog signal handling capability
• Ultra-low leakage current and quiescent power consumption
• TTL/CMOS logic compatible inputs

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery-powered systems
• Audio/video-signal routing
• Low-voltage data-acquisition systems
• Cell phones and PDAs
• Glucose meters

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the component status as the datasheet indicates potential future product availability for specific suffixes. Confirm RoHS compliance through the lead-free designation. Ensure proper power-supply sequencing is applied during installation to prevent damage. Check absolute maximum ratings regarding overvoltage protection requirements for analog inputs.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this part when a normally closed state is required upon power-up or logic low input. Compare against MAX4747 for normally open configurations. Consider the WLP footprint constraints versus TSSOP or TQFN alternatives if board space allows. Verify that the 50Ω on-resistance meets system impedance requirements at the target supply voltage.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX4747–MAX4750 family of low-voltage analog switches. The MAX4748 variant specifically provides four normally closed channels, distinguishing it from the normally open MAX4747 and mixed NO/NC MAX4749. All variants share identical packaging and electrical characteristics except for switch state polarity.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

MAX4747EWE+T offers the same package and specs but with normally open switches. MAX4749EWE+T provides two normally open and two normally closed switches. MAX4750EWE+T contains dual SPDT switches. Cross-reference pinouts carefully as internal switch states differ.