MAX5409:Dual, Audio, Log Taper Digital Potentiometers

The MAX5408-MAX5411 dual, logarithmic taper digital potentiometers, with 32-tap points each, replace mechanical potentiometers in audio applications requiring digitally controlled resistors. The MAX5408/MAX5410 are dual potentiometers with one wiper per potentiometer. The MAX5409/MAX5411 are dual potentiometers with two wipers per potentiometer (see Functional Diagram). An SPI™-compatible serial interface controls the wiper positions. The MAX5408- MAX5411 have a factory-set resistance of 10kΩ per potentiometer. A zero-crossing detect feature minimizes the audible noise generated by wiper transitions. The MAX5408-MAX5411 have nominal temperature coefficients of 35ppm/°C end-to-end and 5ppm/°C ratiometric. The MAX5408-MAX5411 are available in 16-pin QSOP and 16-pin thin QFN packages and are specified over the extended temperature range (-40°C to +85°C).

Key Features
  • Log Taper with 2dB Steps Between Taps
  • 32-Tap Positions for Each Wiper
  • Small 16-Pin QSOP/QFN Packages
  • Single-Supply Voltage Operation
    • +2.7V to +3.6V (MAX5408/MAX5409)
    • +4.5V to +5.5V (MAX5410/MAX5411)
  • Low 0.5µA Standby Supply Current
  • Zero-Crossing Detection for Clickless Switching
  • Mute Function to -90dB
  • 10kΩ Fixed Resistance Value
  • 3-Wire SPI-Compatible Serial Data Interface
  • Power-On Reset: Wiper Goes to Maximum Attenuation
  • Digital Output for Readback and Daisy-Chaining Capabilities
MAX5408, MAX5409, MAX5410, MAX5411: Functional Diagram
MAX5408, MAX5409, MAX5410, MAX5411: Functional Diagram
Applications/Uses
  • Fading and Balancing Stereo Signals
  • Mechanical Potentiometer Replacements
  • Stereo Volume Control
DataSheet
titleDownload file
MAX5408-MAX5411 Data SheetMAX5408-MAX5411.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
MAX5408Log23-Wire Serial SPIVolatile3210303510000.2QSOP/16
TQFN/16
$1.83 @1k
MAX5409QSOP/16
TQFN/16
$2.56 @1k
MAX5410QSOP/16
TQFN/16
$1.87 @1k
MAX5411QSOP/16
TQFN/16
$2.56 @1k
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX5409EEENo Longer AvailableMAX5409EEE+QSOP,;16 pin;30.9 mm²-40°C to +85°CNo
MAX5409EEE+ActiveQSOP,;16 pin;30.9 mm²-40°C to +85°CLead Free
MAX5409EEE+TActiveQSOP,;16 pin;30.9 mm²-40°C to +85°CLead Free
MAX5409EEE-TNo Longer AvailableMAX5409EEE+TQSOP;16 pin-40°C to +85°CSee data sheet
MAX5409ETENo Longer AvailableMAX5409ETE+TQFN,;16 pin;16.8 mm²-40°C to +85°CNo
MAX5409ETE+ActiveTQFN,;16 pin;16.8 mm²-40°C to +85°CLead Free
MAX5409ETE+TActiveTQFN,;16 pin;16.8 mm²-40°C to +85°CLead Free
MAX5409ETE-TNo Longer AvailableMAX5409ETE+TQFN;16 pin-40°C to +85°CSee data sheet
MAX5408-MAX5411.pdf MAX5411
Audio Gain Control Using Digital Potentiometers MAX5486
MAX5408-MAX5411.pdf MAX5411