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

Dual, 256-Step, Up/Down Interface Digital Potentiometer with a 2.6V Supply

Product Details

Key Features

Parametric specs for Digital Potentiometers
Steps 256
# Potentiometers 2
Control Interface Up/Down
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) 1
Package/Pins TSSOP/14
Budgetary
Price (See Notes)
1.07
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Simplified Block Diagram

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Parameters

Parametric specs for Digital Potentiometers
Steps 256
# Potentiometers 2
Control Interface Up/Down
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) 1
Package/Pins TSSOP/14
Budgetary
Price (See Notes)
1.07

Key Features

  • Dual, 256-Tap Linear Taper Positions
  • Single +2.6V to +5.5V Supply Operation
  • Low (< 1µA) Quiescent Supply Current
  • 10kΩ, 50kΩ, 100kΩ End-to-End Resistance Values
  • Up/Down Interface
  • Power-On Sets Wiper to Midscale
  • -40°C to +125°C Operating Temperature Range

Applications/Uses

  • Adjustable Voltage References/Linear Regulators
  • Audio Mixing
  • Low-Drift Programmable Filters and Amplifiers
  • Low-Voltage Battery Applications
  • Mechanical Potentiometer Replacement
  • Programmable Delays and Time Constants

Description

The MAX5389 dual, 256-tap, volatile, low-voltage linear taper digital potentiometer offers three end-to-end resistance values of 10kΩ, 50kΩ, and 100kΩ. Operating from a single +2.6V to +5.5V power supply, the device provides a low 35ppm/°C end-to-end temperature coefficient. The MAX5389 features an up/down interface.

The small package size, low supply operating voltage, low supply current, and automotive temperature range of the MAX5389 make the device uniquely suited for the portable consumer market and battery backup industrial applications.

The MAX5389 is specified over the automotive -40°C to +125°C temperature range and is available in a 14-pin TSSOP package.

Simplified Block Diagram

MAX5389: Functional Diagram MAX5389: Functional Diagram Zoom icon

Technical Docs

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 .