MAX5471:32-Tap, Nonvolatile, Linear-Taper Digital Potentiometers in SOT23

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

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.

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
MAX5471, MAX5472, MAX5474, MAX5475: Pin Configuration
MAX5471, MAX5472, MAX5474, MAX5475: Pin Configuration
Applications/Uses
  • Audio Volume Control
  • Liquid-Crystal Display (LCD) Screen Adjustment
  • Mechanical Potentiometer Replacements
  • Programmable Filters
DataSheet
titleDownload file
MAX5471-MAX5475 Data SheetMAX5471-MAX5475.pdf
Parametrics
Part NumberTaperPOTsControl InterfaceWiper MemoryStepsREND-TO-END
(kΩ)
Temp. Coeff.
(ppm/°C)
Wiper Resistance
(Ω)
ICC @5V
(µA)
Package/PinsBudgetary
Price
typtypmaxSee Notes
MAX5471Linear1Up/DownNon-Volatile3250356001TSOT/6$0.54 @1k
MAX5472100TSOT/6$0.54 @1k
MAX547450SOT/8$0.74 @1k
MAX5475100SOT/8$0.74 @1k
Design kits & evaluation modules
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX5471EZTNo Longer AvailableMAX5471EZT+TSOT,;6 pin;8.3 mm²-40°C to +85°CNo
MAX5471EZT+ActiveTSOT,;6 pin;8.3 mm²-40°C to +85°CLead Free
MAX5471EZT+TActiveTSOT,;6 pin;8.3 mm²-40°C to +85°CLead Free
MAX5471EZT-TNo Longer AvailableMAX5471EZT+TTSOT,;6 pin;8.3 mm²-40°C to +85°CNo
MAX5471-MAX5475.pdf MAX5475
Reduce the Chances of Human Error: Part 1, Power and Ground MAX5481
Where Is Ground? MAX5475
MAX5471.pdf MAX5471
MAX5471-MAX5475.pdf MAX5472