MAX5386NATE+T

Overview

The MAX5386NATE+T is a dual, 256-tap, volatile, low-voltage linear taper digital potentiometer manufactured by Analog Devices Inc./Maxim Integrated. It features two independent potentiometers in a voltage-divider configuration with an end-to-end resistance of 100kΩ. The device operates from a single +2.6V to +5.5V supply and includes an SPI-compatible interface for wiper control. Key electrical specifications include a maximum full-scale error of -0.5 LSB, a zero-scale error of +0.5 LSB, and a temperature coefficient of 35 ppm/°C. It is housed in a 16-pin TQFN package with an exposed pad.

Feature Summary

• Dual 256-tap linear taper potentiometers with 100kΩ end-to-end resistance
• SPI-compatible 3-wire serial interface (CS, DIN, SCLK)
• Low quiescent supply current of less than 1µA
• Extended operating temperature range from -40°C to +125°C

Applications

• Low-voltage battery applications
• Portable electronics
• Mechanical potentiometer replacement
• Offset and gain control circuits
• Adjustable voltage references and linear regulators

Procurement Notes

Verify the component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches the required package type and RoHS compliance status. Ensure that the volatile memory characteristics are compatible with the system's power management strategy, as wiper positions reset upon power loss.

Selection Notes

Select the MAX5386NATE+T when a 100kΩ resistance value is required for both channels. Compare against the MAX5386LATE+T (10kΩ) and MAX5386MATE+T (50kΩ) based on circuit impedance requirements. Consider the continuous current limits of ±1mA for the N-series variant when designing load conditions. Verify that the system supports the SPI protocol for digital control.

Part Context

This component belongs to the MAX5386/MAX5388 family of digital potentiometers. The MAX5386 variant specifically provides two voltage-divider configured potentiometers, whereas the MAX5388 offers one voltage-divider and one variable-resistor configuration. The 'N' suffix denotes the 100kΩ resistance option within this series.

Replacement Considerations

Direct replacements within the same family include MAX5386LATE+T (10kΩ) and MAX5386MATE+T (50kΩ). For different configurations, consider the MAX5388 series. Cross-referencing with other manufacturers requires verifying pin compatibility, resistance values, and interface protocols.