MAX5408, MAX5409, MAX5410, MAX5411 Dual, Audio, Log Taper Digital Potentiometers

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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

Applications/Uses

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

	Fading and Balancing Stereo Signals
	Mechanical Potentiometer Replacements
	Stereo Volume Control

Key Specifications: Digital Potentiometers

Part Number

Taper

POTs Per Pkg.

Control Interface

Wiper Memory

Number of Steps

End-to-End Resistance (kΩ)

Res. Tol. (%)

Temp. Coeff. (typ)(ppm/°C)

Wiper Resistance (typ) (Ω)

Max. Idle State Supply Current @5V (µA)

Features

Supply Voltage (V)

RoHS Available

Package

Price^**

MAX5408

Log

3-Wire Serial SPI

Volatile

1,000

0.2

2.7 to 3.6

Yes

QSOP/16
THIN QFN/16

$1.55 @ 1k

MAX5409

•	Dual Wipers Per Resistor String

2.7 to 3.6

$2.11 @ 1k

MAX5410

4.5 to 5.5

$1.55 @ 1k

MAX5411

•	Dual Wipers Per Resistor String

4.5 to 5.5

$2.11 @ 1k

See All Digital Potentiometers (121)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.