MAX5395NATA+T

Overview

The MAX5395NATA+T is a single-channel, volatile digital potentiometer featuring 256 linear tap positions. It offers end-to-end resistance options of 10kΩ, 50kΩ, and 100kΩ with an I²C serial interface. The device operates on a single supply from 1.7V to 5.5V, utilizing an internal charge pump to allow H, W, and L terminals to handle voltages up to 5.25V independent of VDD. Key electrical parameters include ±1.0 LSB INL, ±0.5 LSB DNL, and a typical wiper resistance of 25Ω. It supports user-controlled shutdown modes and ultra-low quiescent current (<1µA) when the charge pump is disabled.

Feature Summary

• Single Linear Taper Digital Potentiometer with 256 Tap Positions
• I²C-Compatible Serial Interface with General Call Support
• Internal Charge Pump Enables 5.25V Terminal Voltage Independent of Supply
• Ultra-Low Quiescent Current (<1µA) in Low-Power Mode

Applications

• Portable Electronics
• System Calibration
• Battery-Powered Systems
• Mechanical Potentiometer Replacement

Procurement Notes

Verify the specific suffix 'N' indicates the 10kΩ resistance variant by cross-referencing the manufacturer's ordering information table. Confirm the '+T' designation corresponds to the tape-and-reel packaging format. Ensure the component meets RoHS compliance requirements for the intended application environment.

Selection Notes

Select this component for applications requiring low-voltage operation down to 1.7V and high terminal voltage tolerance up to 5.25V. The 10kΩ resistance value (indicated by the 'N' suffix) is suitable for moderate impedance circuits. Consider the volatile memory nature, which resets to midscale upon power-up, if state retention is required.

Part Context

This part belongs to the MAX5395 family of low-voltage digital potentiometers manufactured by Analog Devices/Maxim Integrated. The 'N' suffix typically denotes the 10kΩ end-to-end resistance option within the series, while 'ATA+T' specifies the automotive temperature range, TDFN package, and reel packaging configuration.

Replacement Considerations

Direct replacements must match the 256-tap resolution, I²C interface, and 8-pin TDFN package. Verify that substitute components support the same 1.7V to 5.5V supply range and 5.25V terminal voltage capability to ensure circuit compatibility.