MAX5393:Dual 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers

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

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.

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
MAX5391, MAX5393: Functional Diagram
MAX5391, MAX5393: Functional Diagram
Applications/Uses
  • Adjustable Voltage References/Linear Regulators
  • Low-Voltage Battery Applications
  • Mechanical Potentiometer Replacement
  • Offset and Gain Control
  • Portable Electronics
DataSheet
titleDownload file
MAX5391-MAX5393 Data SheetMAX5391-MAX5393.pdf
Parametrics
Part NumberTaperPOTsControl InterfaceWiper MemoryStepsREND-TO-END
(kΩ)
Res. Tol.
(%)
Temp. Coeff.
(ppm/°C)
Wiper Resistance
(Ω)
ICC @5V
(µA)
Package/PinsBudgetary
Price
typtypmaxSee Notes
MAX5391Linear23-Wire Serial SPIVolatile25610
50
100
253520027TQFN/16$1.38 @1k
MAX5393TSSOP/14
Design kits & evaluation modules
Related Products
  • MAX5392:Dual, 256-Tap, Volatile, Low-Voltage, Linear Taper Digital Potentiometer
  • MAX5487:Dual, 256-Tap, Nonvolatile, SPI-Interface, Linear-Taper Digital Potentiometers
  • MAX5488:Dual, 256-Tap, Nonvolatile, SPI-Interface, Linear-Taper Digital Potentiometers
  • MAX5489:Dual, 256-Tap, Nonvolatile, SPI-Interface, Linear-Taper Digital Potentiometers
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX5393EVKIT+ActiveEVKIT;-40°C to +125°CSee data sheet
MAX5393LAUD+ActiveTSSOP,;14 pin;33.4 mm²-40°C to +125°CLead Free
MAX5393LAUD+TActiveTSSOP,;14 pin;33.4 mm²-40°C to +125°CLead Free
MAX5393MAUD+ActiveTSSOP,;14 pin;33.4 mm²-40°C to +125°CLead Free
MAX5393MAUD+TActiveTSSOP,;14 pin;33.4 mm²-40°C to +125°CLead Free
MAX5393NAUD+ActiveTSSOP,;14 pin;33.4 mm²-40°C to +125°CLead Free
MAX5393NAUD+TActiveTSSOP,;14 pin;33.4 mm²-40°C to +125°CLead Free
MAX5391-MAX5393.pdf MAX5393
MAX5391-MAX5393.pdf MAX5391