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

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

Product Details

Key Features

Parametric specs for Digital Potentiometers
Steps 32
# Potentiometers 1
Control Interface Up/Down
Taper Linear
Wiper Memory Non-Volatile
REND-TO-END (kΩ) 50
Temp. Coeff. (ppm/°C) (typ) 35
Wiper Resistance (Ω) (typ) 600
ICC @5V (µA) (max) 1
Package/Pins TSOT/6
Budgetary
Price (See Notes)
0.6
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Simplified Block Diagram

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Parameters

Parametric specs for Digital Potentiometers
Steps 32
# Potentiometers 1
Control Interface Up/Down
Taper Linear
Wiper Memory Non-Volatile
REND-TO-END (kΩ) 50
Temp. Coeff. (ppm/°C) (typ) 35
Wiper Resistance (Ω) (typ) 600
ICC @5V (µA) (max) 1
Package/Pins TSOT/6
Budgetary
Price (See Notes)
0.6

Key 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

Applications/Uses

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

Description

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.

Simplified Block Diagram

MAX5471, MAX5472, MAX5474, MAX5475: Pin Configuration MAX5471, MAX5472, MAX5474, MAX5475: Pin Configuration Zoom icon

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .