MAX4764ETB+TG104

Analog Switches - Special Purpose Overview

The MAX4764ETB+TG104 is a dual SPDT analog switch from the Maxim Integrated MAX4762–MAX4765 family, housed in a 10-pin TDFN package. It operates on a single +1.8V to +5.5V supply and features low 0.6Ω on-resistance at +2.7V. The device supports negative signal throughput down to VCC - 5.5V, making it suitable for audio applications. Key electrical parameters include 0.25Ω on-resistance flatness, 0.05Ω channel matching, -70dB crosstalk, and -65dB off-isolation at 100kHz. It incorporates an internal shunt switch to discharge capacitance at NO and NC terminals, reducing click-and-pop sounds. The operating temperature range is -40°C to +85°C.

Analog Switches - Special Purpose Feature Summary

• Internal shunt switch automatically discharges capacitance at NO and NC connection points to reduce audible click-and-pop sounds during audio switching.
• Negative signal capability allows signals below ground to pass through without distortion.
• Low on-resistance with high flatness and matching ensures minimal signal degradation.

Analog Switches - Special Purpose Applications

• Audio signal routing in portable devices
• Headphone detection circuits
• Mute/send key functions

Analog Switches - Special Purpose Procurement Notes

Verify the component authenticity by checking the top marking against the ordering information table. Ensure the package type matches the specified 10-pin TDFN format. Confirm the temperature range corresponds to the extended industrial specification. Cross-reference the part number suffix with official distributor documentation to ensure correct variant identification.

Analog Switches - Special Purpose Selection Notes

Select this component when audio quality is critical due to its low total harmonic distortion and clickless switching feature. The internal shunt switch eliminates the need for external discharge components. Consider the 10-pin TDFN package for space-constrained designs requiring surface-mount assembly.

Analog Switches - Special Purpose Part Context

This part belongs to the MAX4762–MAX4765 series of low-voltage, dual SPDT switches. The MAX4764 variant specifically includes the internal shunt switch functionality not present in the MAX4762 or MAX4763 models. It shares the same core analog switch architecture but adds automatic discharge capabilities for improved audio performance.

Analog Switches - Special Purpose Replacement Considerations

Direct substitutes within the same family include the MAX4764EUB (µMAX package) and MAX4764EBC-T (UCSP package). These variants offer identical electrical characteristics and pinout compatibility, differing only in physical package dimensions and mounting style.

Analog Switches - Special Purpose FAQ

What is the function of the internal shunt switch in the MAX4764?

The internal shunt switch automatically discharges any capacitance at the NO and NC terminals when they are unconnected to COM, reducing audible click-and-pop sounds during audio signal switching.

Can the MAX4764 handle signals below ground?

Yes, the device features negative signal capability that allows signals as low as VCC - 5.5V to pass through without distortion, including signals below ground potential.

What is the typical on-resistance of the MAX4764 at +2.7V supply?

The typical on-resistance (RON) is 0.6Ω at a +2.7V supply voltage, with a maximum of 0.95Ω across the full operating temperature range.