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Dual 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers

Industry's First 1.7V Supply, 256-Step Dual Digital Potentiometers

Product Details

Key Features

Applications/Uses

Parametric specs for Digital Potentiometers
Steps 256
# Potentiometers 2
Control Interface 3-Wire Serial SPI
Taper Linear
Wiper Memory Volatile
REND-TO-END (kΩ) 10
50
100
Res. Tol. (%) 25
Temp. Coeff. (ppm/°C) (typ) 35
Wiper Resistance (Ω) (typ) 200
ICC @5V (µA) (max) 27
Package/Pins TSSOP/14
Budgetary
Price (See Notes)
1.54
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Simplified Block Diagram

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Parameters

Parametric specs for Digital Potentiometers
Steps 256
# Potentiometers 2
Control Interface 3-Wire Serial SPI
Taper Linear
Wiper Memory Volatile
REND-TO-END (kΩ) 10
50
100
Res. Tol. (%) 25
Temp. Coeff. (ppm/°C) (typ) 35
Wiper Resistance (Ω) (typ) 200
ICC @5V (µA) (max) 27
Package/Pins TSSOP/14
Budgetary
Price (See Notes)
1.54

Key Features

  • Dual, 256-Tap Linear Taper Positions
  • Single +1.7V to +5.5V Supply Operation
  • Low 12µA Quiescent Supply Current
  • 10kΩ, 50kΩ, and 100kΩ End-to-End Resistance Values
  • SPI-Compatible Interface
  • Wiper Set to Midscale on Power-Up
  • -40°C to +125°C Operating Temperature Range

Applications/Uses

  • Adjustable Voltage References/Linear Regulators
  • Low-Voltage Battery Applications
  • Mechanical Potentiometer Replacement
  • Offset and Gain Control
  • Portable Electronics

Description

The MAX5391/MAX5393 dual 256-tap, volatile, low-voltage linear taper digital potentiometers offer three end-to-end resistance values of 10kΩ, 50kΩ, and 100kΩ. Operating from a single +1.7V to +5.5V power supply, these devices provide a low 35ppm/°C end-to-end temperature coefficient. The devices feature an SPI interface.

The small package size, low supply voltage, low supply current, and automotive temperature range of the MAX5391/MAX5393 make the devices uniquely suitable for the portable consumer market and battery backup industrial applications.

The MAX5391/MAX5393 include two digital potentiometers in a voltage-divider configuration. The MAX5391/MAX5393 are specified over the -40°C to +125°C automotive temperature range and are available in a 16-pin, 3mm x 3mm TQFN and a 14-pin TSSOP package, respectively.

Simplified Block Diagram

MAX5391, MAX5393: Functional Diagram MAX5391, MAX5393: Functional Diagram 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 .