MAX5487

Dual, 256-Tap, Nonvolatile, SPI-Interface, Linear-Taper Digital Potentiometers


Please check latest availability status for a specific part variant.

Description

The MAX5487/MAX5488/MAX5489 dual, linear-taper, digital potentiometers function as mechanical potentiometers with a simple 3-wire SPI™-compatible digital interface that programs the wipers to any one of 256 tap positions. These digital potentiometers feature a nonvolatile memory (EEPROM) to return the wipers to their previously stored positions upon power-up.

The MAX5487 has an end-to-end resistance of 10kΩ, while the MAX5488 and MAX5489 have resistances of 50kΩ and 100kΩ, respectively. These devices have a low 35ppm/°C end-to-end temperature coefficient, and operate from a single +2.7V to +5.25V supply.

The MAX5487/MAX5488/MAX5489 are available in 16-pin 3mm x 3mm x 0.8mm thin QFN or 14-pin TSSOP packages. Each device is guaranteed over the extended -40°C to +85°C temperature range.

MAX5487, MAX5488, MAX5489: Functional Diagram MAX5487, MAX5488, MAX5489: Functional Diagram Enlarge+

Key Features

  • Wiper Position Stored in Nonvolatile Memory (EEPROM) and Recalled Upon Power-Up or Recalled by an Interface Command
  • 3mm x 3mm x 0.8mm, 16-Pin Thin QFN or 14-Pin TSSOP Packages
  • ±1 LSB INL, ±0.5 LSB DNL (Voltage-Divider Mode)
  • 256 Tap Positions
  • 35ppm/°C End-to-End Resistance Temperature Coefficient
  • 5ppm/°C Ratiometric Temperature Coefficient
  • 10kΩ, 50kΩ, and 100kΩ End-to-End Resistance Values
  • SPI-Compatible Serial Interface
  • Reliability
    • 200,000 Wiper Store Cycles
    • 50-Year Wiper Data Retention
  • +2.7V to +5.25V Single-Supply Operation

Applications/Uses

  • Audio Volume Control
  • LCD Screen Adjustment
  • Low-Drift Programmable Filters
  • Low-Drift Programmable-Gain Amplifiers
  • Mechanical Potentiometer Replacement

See parametric specs for Digital Potentiometers (117)


Part NumberTaperPOTsControl InterfaceWiper MemoryStepsREND-TO-END
(kΩ)
Res. Tol.
(%)
Temp. Coeff.
(ppm/°C)
Wiper Resistance
(Ω)
ICC @5V
(µA)
Package/PinsBudgetary
Price
typtypmaxSee Notes
MAX5487 Linear23-Wire Serial SPINon-Volatile2561025353251
TQFN/16
TSSOP/14
$1.99 @1k
MAX5488 50
TQFN/16
TSSOP/14
$1.99 @1k
MAX5489 100
TQFN/16
TSSOP/14
$2.04 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX5488EVKIT: Evaluation Kit for the MAX5488
MAX5487PMB1: MAX5487PMB1 Peripheral Module
MAXPMBAE: Maxim Analog Essentials Collection of Peripheral Modules

Tools & Models

  • MAX5487 IBIS Model
  • Product Reliability Reports: MAX5487.pdf 
    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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