MAX5410ETE+

Overview

The MAX5410ETE+ is a dual, logarithmic taper digital potentiometer from the MAX5408–MAX5411 series. It features two independent potentiometers with 32 tap positions each and one wiper per resistor. The device operates on a single supply voltage of +4.5V to +5.5V and utilizes an SPI-compatible 3-wire serial interface for control. Each potentiometer has a factory-set end-to-end resistance of 10kΩ with a nominal temperature coefficient of 35ppm/°C. Key audio-specific features include zero-crossing detection to minimize audible switching noise and a mute function providing -90dB attenuation.

Feature Summary

• Dual potentiometers with 32-tap logarithmic taper (2dB steps) and 10kΩ fixed resistance
• SPI-compatible 3-wire serial interface with readback and daisy-chaining capabilities
• Zero-crossing detection circuitry minimizes audible clicks and pops during wiper transitions
• Mute function achieves -90dB attenuation; Power-On Reset sets wipers to maximum attenuation (-62dB)

Applications

• Stereo volume control in audio systems
• Fading and balancing stereo signals
• Replacement for mechanical potentiometers in digitally controlled audio circuits

Procurement Notes

Verify that the specific ordering suffix matches the required package type. The 'ETE' suffix indicates a 16-pin Thin QFN package. Confirm the logic supply voltage requirements align with the system design, as the device supports VLOGIC levels between 2.7V and 5.5V while requiring VDD between 4.5V and 5.5V.

Selection Notes

Select the MAX5410ETE+ when a dual-channel audio application requires logarithmic response and single-supply operation between 4.5V and 5.5V. Choose this model over the MAX5408 if the higher supply voltage range is necessary. Ensure the design accommodates the 16-pin Thin QFN footprint if space constraints dictate the use of the ETE package variant.

Part Context

The MAX5410ETE+ belongs to the MAX5408–MAX5411 family of dual audio digital potentiometers. Within this series, the MAX5410 is distinguished by its support for the +4.5V to +5.5V supply range, whereas the MAX5408 operates at +2.7V to +3.6V. Both share identical electrical characteristics regarding resistance, taps, and interface protocols.

Replacement Considerations

The MAX5408ETE+ serves as a functional substitute within the same package but operates at a lower supply voltage range (+2.7V to +3.6V). Verify that the system power rails are compatible with the MAX5408's specifications before substitution.