MAX5475EKA-T

Overview

The MAX5475EKA-T is a single-channel digital potentiometer IC featuring 32 nonvolatile taps with linear taper characteristics. It operates within a supply voltage range of 2.7 V to 5.25 V and draws a typical operating current of 1 µA. The device utilizes an Up/Down digital interface for wiper position control and maintains resistance tolerance at 100 kΩ with a temperature coefficient of 35 PPM/°C. Packaged in an SOT-23-8 surface-mount format, it supports an extended industrial temperature range from -40°C to +85°C.

Feature Summary

• Nonvolatile memory retains wiper settings without power
• Up/Down digital interface for simple control
• Ultra-low quiescent current of 1 µA
• Linear taper resistance profile

Applications

• Battery-powered instrumentation requiring low standby power
• Calibration circuits needing persistent adjustment values
• Portable medical devices with limited power budgets
• Industrial sensor signal conditioning

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging configuration. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets prior to integration. Ensure the component source matches Analog Devices specifications to avoid counterfeit risks.

Selection Notes

Select this model when nonvolatile storage is required alongside minimal power consumption. The 32-tap resolution suits applications where coarse adjustment is sufficient. Verify that the Up/Down interface aligns with the host controller's GPIO capabilities rather than serial protocols used by other variants in the series.

Part Context

This component belongs to the MAX5475 family of digital potentiometers. It differs from volatile counterparts like the MAX5400 by retaining state after power loss. The EKA package denotes the SOT-23-8 footprint, distinguishing it from larger packages used in higher-pin-count versions.

Replacement Considerations

Direct substitutes include other MAX5475 variants with different resistance values or packaging options. Cross-reference pinouts carefully as interface types (Serial vs. Up/Down) vary across the family. No alternative part numbers are confirmed in public documentation.