MAX5474
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MAX5474

32-Tap, Nonvolatile, Linear-Taper Digital Potentiometers in SOT23

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Industry's First 32-Tap, Nonvolatile Digital Potentiometers in a SOT23 have Ultra-Low Temperature Drift

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $1.07
Features
  • Wiper Position Stored in Nonvolatile Memory and Recalled Upon Power-Up
  • Tiny SOT23 Package
  • 35ppm/°C End-to-End Resistance Temperature Coefficient
  • 5ppm/°C Ratiometric Temperature Coefficient
  • 32 Tap Positions
  • Voltage-Divider or Variable-Resistor Potentiometer Configuration
  • 50kΩ and 100kΩ End-to-End Resistance Values
  • 1µA (max) Static Supply Current
  • 2.7V to 5.25V Single-Supply Operation
  • 200,000 Wiper Store Cycles
  • 50-Year Wiper Data Retention
Additional Details
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The MAX5471/MAX5472/MAX5474/MAX5475 linear-taper digital potentiometers function as mechanical potentiometers, but replace the mechanics with a simple 3-wire up/down digital interface. These digital potentiometers feature nonvolatile memory (EEPROM) to return the wiper to its previously stored position upon power-up.

The MAX5471/MAX5472 are 2-terminal, variable resistors in 6-pin SOT23 packages. The MAX5474/MAX5475 are 3-terminal potentiometers in 8-pin SOT23 packages.

The MAX5471/MAX5474 have an end-to-end resistance of 50kΩ, and the MAX5472/MAX5475 have an end-to-end resistance of 100kΩ. All of these devices have 32 wiper positions, a low ratiometric temperature coefficient (5ppm/°C), and all operate from a single +2.7V to +5.25V supply. Each device is guaranteed over the extended -40°C to +85°C temperature range.

Applications

  • Audio Volume Control
  • Liquid-Crystal Display (LCD) Screen Adjustment
  • Mechanical Potentiometer Replacements
  • Programmable Filters
Part Models 2
1ku List Price Starting From $1.07

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Nov 1, 2021

- 2209

ASSEMBLY

MAX5474EKA+

PRODUCTION

MAX5474EKA+T

PRODUCTION

Feb 5, 2015

- 1370_CANCELLATION

ASSEMBLY

MAX5474EKA+

PRODUCTION

MAX5474EKA+T

PRODUCTION

Filter by Model

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Part Models

Product Lifecycle

PCN

Nov 1, 2021

- 2209

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ASSEMBLY

MAX5474EKA+

PRODUCTION

MAX5474EKA+T

PRODUCTION

Feb 5, 2015

- 1370_CANCELLATION

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ASSEMBLY

MAX5474EKA+

PRODUCTION

MAX5474EKA+T

PRODUCTION

Evaluation Kit

Evaluation Kits 1

MAX5474EVKIT

Evaluation Kit for the MAX5474

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MAX5474EVKIT

Evaluation Kit for the MAX5474

Evaluation Kit for the MAX5474

Features and Benefits

  • 2.7V to 5.25V Single-Supply Operation
  • Power-On Recall of Wiper Position from Nonvolatile Memory
  • On-Board USB Interface Circuit
  • USB Powered
  • USB-PC Connection (Cable Included)
  • Stand-Alone Operation Using On-Board Switches
  • PCB Pads for User-Supplied Microcontroller Interface Signals
  • PCB Pads for Potentiometer Signals (L, W, H)
  • Proven USB-Compatible PCB Layout
  • Evaluates the MAX5474/MAX5475 in 8-Pin SOT23 Package
  • Windows 2000/XP/Vista (32-Bit)-Compatible Software
  • Fully Assembled and Tested

Product Detail

The MAX5474 evaluation kit (EV kit) is an assembled and tested printed-circuit board (PCB) that evaluates the MAX5474 IC. The MAX5474 is a 32-tap, 50kΩ nonvolatile, linear-taper digital potentiometer. Windows® 2000/XP/Vista-compatible software is available to provide a convenient user interface for exercising the MAX5474 features.

The MAX5474 EV kit provides three options to control the MAX5474 wiper position using logic-input signals. The MAX5474 logic-input signals can be controlled by an on-board USB interface circuit, PCB interfacing pads, or switches on the EV kit circuit for stand-alone operation.

The EV kit can operate from a 3.3V source generated from the USB interface circuit or from a 2.7V to 5.25V external DC power supply. The EV kit can also evaluate the MAX5475 (100kΩ) after IC replacement (U1).

Applications

  • Audio Volume Control
  • Liquid-Crystal Display (LCD) Screen Adjustment
  • Mechanical Potentiometer Replacements
  • Programmable Filters

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