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

Dual, 256-Step, Digital Potentiometers with a 2.6V Supply in a 3mm x 3mm TQFN

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) 1
Package/Pins UMAX/10
Budgetary
Price (See Notes)
1.35
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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) 1
Package/Pins UMAX/10
Budgetary
Price (See Notes)
1.35

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
  • SPI-Compatible Interface
  • Power-On Sets Wiper to Midscale
  • -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 MAX5386/MAX5388 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 +2.6V 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 MAX5386/MAX5388 make the devices uniquely suitable for the portable consumer market and battery-backup industrial applications.

The MAX5386 includes two digital potentiometers in a voltage-divider configuration. The MAX5388 includes one digital potentiometer in a voltage-divider configuration and one digital potentiometer in a variable-resistor configuration. The MAX5386/MAX5388 are specified over an extended -40°C to +125°C temperature range and are available in 16-pin, 3mm x 3mm TQFN or 10-pin, 3mm x 5mm µMAX® packages, respectively.

Simplified Block Diagram

MAX5386, MAX5388: Functional Diagrams MAX5386, MAX5388: Functional Diagrams 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 .