MAX5496

10-Bit, Dual, Nonvolatile, Linear-Taper Digital Potentiometers


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Description

The MAX5494–MAX5499 10-bit (1024-tap), dual, nonvolatile, linear-taper, programmable voltage-dividers and variable resistors perform the function of a mechanical potentiometer, but replace the mechanics with a 3-wire SPI™-compatible serial interface. The MAX5494/MAX5495 are dual, 3-terminal, programmable voltage-dividers; the MAX5496/MAX5497 are dual, 2-terminal variable resistors; and the MAX5498/MAX5499 include one 2-terminal variable resistor and one 3-terminal programmable voltage-divider.

The MAX5494–MAX5499 feature an internal, nonvolatile, electrically erasable programmable read-only memory (EEPROM) that stores the wiper position for initialization during power-up. The 3-wire SPI-compatible serial interface allows communication at data rates up to 7MHz.

The MAX5494–MAX5499 are ideal for applications requiring digitally controlled potentiometers. End-to-end resistance values of 10kΩ and 50kΩ are available with a 35ppm/°C end-to-end temperature coefficient. The ratiometric temperature coefficient is 5ppm/°C for each channel, making these devices ideal for applications requiring low-temperature-coefficient programmable voltage-dividers such as low-drift, programmable-gain amplifiers.

The MAX5494–MAX5499 operate with either a single power supply (+2.7V to +5.25V) or dual power supplies (±2.5V). The devices consume 400µA (max) of supply current when writing data to the nonvolatile memory and 1.5µA (max) of standby supply current. The devices are available in space-saving (5mm x 5mm x 0.8mm), 16-pin TQFN package and are specified over the extended (-40°C to +85°C) temperature range.
MAX5494, MAX5495, MAX5496, MAX5497, MAX5498, MAX5499: Pin Configurations MAX5494, MAX5495, MAX5496, MAX5497, MAX5498, MAX5499: Pin Configurations Enlarge+

Key Features

  • Wiper Position Stored in Nonvolatile Memory and Recalled Upon Power-Up
  • 16-Pin, 5mm x 5mm x 0.8mm TQFN Package
  • 35ppm/°C End-to-End Resistance Temperature Coefficient
  • 5ppm/°C Ratiometric Temperature Coefficient
  • 10kΩ and 50kΩ End-to-End Resistor Values
  • 3-Wire SPI-Compatible Serial Interface
  • Reliability (TA = +85°C)
    • 50,000 Wiper Store Cycles
    • 50 Years Wiper Data Retention
  • 1.5µA (max) Standby Current
  • Single +2.7V to +5.25V Supply Operation
  • Dual ±2.5V Supply Operation

Applications/Uses

  • Gain and Offset Adjustment
  • LCD Contrast Adjustment
  • Low-Drift Programmable-Gain Amplifiers
  • Mechanical Potentiometer Replacement
  • Pressure Sensors
  • Volume Control
Part NumberTaperPOTsControl InterfaceWiper MemoryStepsREND-TO-END
(kΩ)
Res. Tol.
(%)
Temp. Coeff.
(ppm/°C)
ICC @5V
(µA)
Package/PinsBudgetary
Price
typmaxSee Notes
MAX5494 Linear23-Wire Serial SPINon-Volatile10241025351.5
TQFN/16
$3.77 @1k
MAX5495 50
TQFN/16
$3.77 @1k
MAX5496 10
TQFN/16
$3.77 @1k
MAX5497 50
TQFN/16
$3.77 @1k
MAX5498 10
TQFN/16
$3.67 @1k
MAX5499 50
TQFN/16
$4.51 @500
See All Digital Potentiometers (124)
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.


MAX5498EVKIT: Evaluation Kit for the MAX5494, MAX5495, MAX5496, MAX5497, MAX5498, and MAX5499

Quality and Environmental Data

Product Reliability Reports: MAX5496.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX5496ETE
  • MAX5496ETE+
  • MAX5496ETE+T
  • MAX5496ETE-T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    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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