MAX5160

Low-Power Digital Potentiometers

First SOT23 Digital Potentiometer


Description

The MAX5160/MAX5161 linear-taper digital potentiometers perform the same function as a mechanical potentiometer or a variable resistor. They consist of a fixed resistor and a wiper contact with 32 tap points that are digitally controlled by three lines for the 8-pin MAX5160 or by two lines for the 6-pin MAX5161.

These parts are ideal for applications requiring digitally controlled resistors. Three resistance values are available for each part type: 50kΩ,100kΩ, and 200kΩ. A nominal resistor temperature coefficient of 50ppm/°C end-to-end and only 5ppm/°C ratiometric makes the MAX5160 ideal for applications requiring a low-temperature-coefficient variable resistor, such as low-tempco, adjustable-gain circuit configurations.

The MAX5160 is available in an 8-pin µMAX package, and the MAX5161 is available in a 6-pin SOT23 package. Both devices are guaranteed over the extended-industrial temperature range (-40°C to +85°C).
MAX5160, MAX5161: Functional Diagram MAX5160, MAX5161: Functional Diagram Enlarge+

Key Features

  • 32 Tap Positions
  • 50kΩ, 100kΩ, and 200kΩ Resistance Values
  • 400Ω Wiper Resistance
  • ±25% Resistance Tolerance
  • 3-Wire Serial Data Input
  • ±1LSB DNL
  • ±0.5LSB INL
  • 100nA Supply Current
  • +2.7V to +5.5V Single-Supply Operation
  • Power-On Reset: Wiper Goes to Midscale (position 16)
  • ±2kV ESD Protection
  • Small-Footprint Packages
    • 6-Pin SOT23 (MAX5161)
    • 8-Pin µMAX (MAX5160)
  • Glitchless Switching Between the Resistor Taps

Applications/Uses

  • LCD Screen Adjustment
  • Mechanical Potentiometer Replacements
  • Volume Control
Part Number Taper POTs Control Interface Wiper Memory Steps REND-TO-END
(kΩ)
Res. Tol.
(%)
Temp. Coeff.
(ppm/°C)
Wiper Resistance
(Ω)
ICC @5V
(µA)
Package/Pins Budgetary
Price
typ typ max See Notes
MAX5160  Linear 1 3-Wire Serial Volatile 32
50
100
200
25 50 400 10
µMAX/8
$0.75 @1k
MAX5161 
TSOT/6
$0.70 @1k
See All Digital Potentiometers (126)
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.

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