MAX5527

PRODUCTION

64-Tap, One-Time Programmable, Linear-Taper Digital Potentiometers

Data Sheet (Rev. 1) Product Selection Table
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Overview

  • Wiper Position Stored After One-Time Fuse Programming
  • 64 Tap Positions
  • Wiper Position Programmed Through Simple 2-Wire Up/Down Interface
  • 35ppm/°C End-to-End Temperature Coefficient
  • 5ppm/°C Ratiometric Temperature Coefficient
  • Ultra-Low 1.5µA (max) Static Supply Current
  • +2.7V to +5.5V Single-Supply Operation
  • 10kΩ, 50kΩ, and 100kΩ End-to-End Resistances
  • Tiny, 3mm x 3mm, 8-Pin TDFN and 5mm x 3mm, 8-Pin µMAX Packages
  • EV Kit Available

The MAX5527/MAX5528/MAX5529 linear-taper digital potentiometers perform the same function as mechanical potentiometers, replacing the mechanics with a simple 2-wire up/down digital interface. These digital potentiometers provide an optional one-time programmable feature that sets the power-on reset position of the wiper. Once the wiper position is programmed, the 2-wire interface can be disabled to prevent unwanted adjustment.

The MAX5527/MAX5528/MAX5529 provide an end-to-end resistance of 100kΩ, 50kΩ, and 10kΩ, respectively. The devices feature low temperature coefficients of 35ppm/°C end-to-end and 5ppm/°C ratiometric. All devices offer 64 wiper positions and operate from a single +2.7V to +5.5V supply. An ultra-low, 0.25µA (typ) standby supply current saves power in battery-operated applications.

The MAX5527/MAX5528/MAX5529 are available in 3mm x 3mm, 8-pin TDFN and 5mm x 3mm, 8-pin µMAX® packages. Each device is guaranteed over the -40°C to +105°C temperature range.

Applications

  • Mechanical Potentiometer Replacements
  • Products Using One-Time Factory Calibration
MAX5527
64-Tap, One-Time Programmable, Linear-Taper Digital Potentiometers
MAX5527, MAX5528, MAX5529: Pin Configurations
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Documentation

Data Sheet 1

Design Note 2

Technical Articles 1

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Evaluation Kits

MAX5527EVKIT

Evaluation Kit for the MAX5527

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Features and Benefits

  • On-Board 8-Pin µMAX Socket
  • Windows 98/2000/XP Evaluation Software
  • Software Adjusts and Programs Wiper Position
  • Fully Assembled and Tested

Product Details

The MAX5527 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that evaluates the digital potentiometer. Included software generates the required signals for one-time-programmable (OTP) operation and allows easy control of the wiper position. An on-board 8-pin µMAX® socket eases replacement of the device. The EV kit connects to a standard IBM-compatible PC parallel (printer) port.

Windows® 98/2000/XP-compatible software provides a user-friendly interface to exercise the MAX5527's features. The program is menu driven and offers a graphic user interface.

This EV kit can also be used to evaluate the MAX5528 and MAX5529 digital potentiometers.

Applications

  • Mechanical Potentiometer Replacements
  • Products Using One-Time Factory Calibration
MAX5527EVKIT
Evaluation Kit for the MAX5527

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