MAX5405:Dual, 256-Tap, Low-Drift, Digital Potentiometers in 10-µMAX

Industry's Smallest Dual Digital Potentiometer

The MAX5403/MAX5404/MAX5405 is a family of dual linear taper digital potentiometers. Each device has one 3-terminal potentiometer and one 2-terminal variable resistor (Figure 1). The MAX5403/MAX5404/MAX5405 operate from +2.7V to +5.5V single-supply voltages and use an ultra-low supply current of 0.1µA. These devices also provide glitchless switching between resistors taps as well as a convenient power-on reset (POR) that sets the wiper to the midscale position at power-up. The potentiometer consists of a fixed resistor with a wiper contact that is digitally controlled through a 3-wire serial interface and has 256-tap points. It performs the same function as a discrete potentiometer or variable resistor. These parts are ideal for applications requiring digitally controlled resistors. Three resistance values are available: 10kΩ (MAX5403), 50kΩ (MAX5404), and 100kΩ (MAX5405). A nominal resistor-temperature coefficient of 35ppm/°C end-to-end and 5ppm/°C ratiometric make the MAX5403/MAX5404/MAX5405 ideal for applications requiring low temperature-coefficient variable resistors, such as adjustable-gain circuit configurations. The MAX5403/MAX5404/MAX5405 are available in a 10-pin µMAX® package. Each device is guaranteed over the extended industrial temperature range (-40°C to +85°C).

Key Features
  • 10-Pin µMAX Small Footprint Package
  • 256-Tap Positions
  • Ultra Low 0.1µA Supply Current
  • +2.7V to +5.5V Single-Supply Operation
  • Low End-To-End Temperature Coefficient: 35ppm/°C
  • Low Ratiometric Temperature Coefficient: 5ppm/°C
  • Power-On Reset: Wiper Goes to Midscale (Position 128)
  • Glitchless Switching Between Resistor Taps
  • 3-Wire SPI™-Interface Compatible
  • 10kΩ/50kΩ/100kΩ Resistor Values
MAX5403, MAX5404, MAX5405: Functional Diagram
MAX5403, MAX5404, MAX5405: Functional Diagram
Applications/Uses
  • Adjustable Voltage Reference
  • Impedance Matching
  • LCD Screen Adjustment
  • Low-Drift Programmable Gain Amplifier (PGA)
  • Mechanical Potentiometer Replacement
  • Programmable Filters, Delays, Time Constant
  • Volume Control
DataSheet
titleDownload file
MAX5403-MAX5405 Data SheetMAX5403-MAX5405.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
MAX5403Linear23-Wire Serial SPIVolatile2561025352755µMAX/10$2.57 @1k
MAX540450µMAX/10
MAX5405100µMAX/10
Related Products
  • MAX5414:Dual, 256-Tap, Low-Drift, Digital Potentiometers in 14-Pin TSSOP
  • MAX5415:Dual, 256-Tap, Low-Drift, Digital Potentiometers in 14-Pin TSSOP
  • MAX5413:Dual, 256-Tap, Low-Drift, Digital Potentiometers in 14-Pin TSSOP
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX5405EUBActiveµMAX,;10 pin;15.4 mm²-40°C to +85°CNo
MAX5405EUB+ActiveµMAX,;10 pin;15.4 mm²-40°C to +85°CLead Free
MAX5405EUB+TActiveµMAX,;10 pin;15.4 mm²-40°C to +85°CLead Free
MAX5405EUB-TNo Longer AvailableMAX5405EUB+TµMAX,;10 pin;15.4 mm²-40°C to +85°CNo
MAX5403-MAX5405.pdf MAX5405
Pots, Pans, Logs, and Linear Digital Pots Create Arbitrary Voltage Curves MAX5405
MAX5403-MAX5405.pdf MAX5405