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MAX5408, MAX5409, MAX5410, MAX5411
Dual, Audio, Log Taper Digital Potentiometers
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Status
Active: In Production.
Description
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).
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Data Sheet
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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
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Applications/Uses
- Fading and Balancing Stereo Signals
- Mechanical Potentiometer Replacements
- Stereo Volume Control
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Key Specifications:
| Digital Potentiometers |
| Part Number |
Taper |
POTs |
Control Interface |
Wiper Memory |
Steps |
REND-TO-END
(kΩ) |
Res. Tol.
(%) |
Temp. Coeff.
(ppm/°C) |
Wiper Resistance
(Ω) |
ICC @5V
(µA) |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| typ |
typ |
max |
max w/pins |
See Notes |
| MAX5408 |
Log |
2 |
3-Wire Serial SPI |
Volatile |
32 |
10 |
30 |
35 |
1000 |
0.2 |
16.8 |
$1.55 @1k |
| MAX5409 |
$2.11 @1k |
| MAX5410 |
$1.55 @1k |
| MAX5411 |
$2.11 @1k |
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See All Digital Potentiometers (129)
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Pricing 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.
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Diagram
Functional Diagram
Notes and Comments
Functional Diagram appears at end of data sheet.
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-2049
Rev 3;
2005-02-23
This page last modified: 2009-10-26
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