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Data Sheet

FULL DATA SHEET (PDF, 772kB) Download   E-Mail

Description

The MAX5456/MAX5457 dual, logarithmic taper digital potentiometers feature a simple pushbutton interface that controls volume and balance in audio applications. Each potentiometer has 32 tap points and replaces mechanical potentiometers. Refer to the MAX5408-MAX5411 data sheet for SPI™ versions of the MAX5456/MAX5457. Use the MAX5456/MAX5457 digital inputs with momentary contact single-pole/single-throw (SPST) pushbutton switches. Each input includes internal debounce circuitry and a 50k pullup resistor. The MAX5456/MAX5457 advance the wiper setting once per button push. Maxim's proprietary SmartWiper™ control eliminates the need for a microcomputer to increase the wiper transition rate. Holding the control input low for more than 1s advances the wiper at a rate of 4Hz for 4s and 16Hz per second thereafter. The MAX5456/MAX5457 provide temperature coefficients of 50ppm/°C end-to-end and 5ppm/°C ratiometric and a nominal resistance of 10k per potentiometer. An integrated click/pop suppression feature minimizes the audible noise generated by wiper transitions. The typical total harmonic distortion plus noise (THD+N) for these devices is 0.01%. The MAX5457 features a 3-button interface with a MODE-bar input that toggles between volume- and balance-control modes. An LED output indicates volume or balance mode. The MAX5456 features a 4-button interface with separate inputs for up and down volume controls and left and right balance controls. The MAX5456/MAX5457 are available in 16-pin QSOP and 16-pin TQFN packages and are specified over the extended (-40°C to +85°C) temperature range.

Key Features		Applications/Uses
SmartWiper Control Provides Accelerated Wiper Motion Debounced Pushbutton Interface with Internal Pullup Resistors Logarithmic Taper with 2dB Steps Between Taps Single +2.7V to +5.5V or Dual ±2.7V Supply Operation Low 0.5µA Standby Supply Current Clickless Switching 10k End-to-End Fixed Resistance Value Mute Function to -90dB (typ) Power-On Reset to -12dB Wiper Position 32 Tap Positions for Each Wiper Small 16-Pin QSOP/TQFN Packages		Fading and Balancing Stereo Signals Stereo Blending and Mixing Stereo Volume Control

Diagram

Functional Diagram

Application Notes

Application Note 161: Using a DS1802 Push-Button Digital Potentiometer to Create an Audio Preamp with Attenuator - MAX5457 Application Note 3492: Audio Fading Circuit Using the MAX5456/MAX5457 - MAX5456, MAX5457 Application Note 4025: DACs vs. Digital Potentiometers: Which Is Right for My Application? - MAX5456 Application Note 4101: Differentiating Digital Potentiometer Features - MAX5457

Evaluation Kits

none

Reliability Reports

Show FIT data for: MAX5456 MAX5457 Request Reliability Report for: MAX5456 MAX5457

Software/Models

none

Ordering Information
Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices: 1-16 of 16
MAX5456	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX5456EEE			QSOP;13 pin; Dwg: 21-0055H (PDF) Use pkgcode/variation: E16-1*	-40°C to +85°C	See data sheet
MAX5456EEE+			QSOP;16 pin; Dwg: 21-0055H (PDF) Use pkgcode/variation: E16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5456EEE+T			QSOP;16 pin; Dwg: 21-0055H (PDF) Use pkgcode/variation: E16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5456EEE-T			QSOP;13 pin; Dwg: 21-0055H (PDF) Use pkgcode/variation: E16-1*	-40°C to +85°C	See data sheet
MAX5456ETE			THIN QFN;16 pin; Dwg: 21-0139I (PDF) Use pkgcode/variation: T1644-4*	-40°C to +85°C	See data sheet Materials Analysis
MAX5456ETE-T				-40°C to +85°C	See data sheet
MAX5456ETE+T				-40°C to +85°C	See data sheet
MAX5456ETE+			THIN QFN;16 pin; Dwg: 21-0139I (PDF) Use pkgcode/variation: T1644+4*	-40°C to +85°C	See data sheet Materials Analysis
MAX5457	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX5457EEE-T			QSOP;13 pin; Dwg: 21-0055H (PDF) Use pkgcode/variation: E16-1*	-40°C to +85°C	See data sheet
MAX5457EEE+T			QSOP;16 pin; Dwg: 21-0055H (PDF) Use pkgcode/variation: E16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5457EEE+			QSOP;16 pin; Dwg: 21-0055H (PDF) Use pkgcode/variation: E16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5457EEE			QSOP;13 pin; Dwg: 21-0055H (PDF) Use pkgcode/variation: E16-1*	-40°C to +85°C	See data sheet
MAX5457ETE			THIN QFN;16 pin; Dwg: 21-0139I (PDF) Use pkgcode/variation: T1644-4*	-40°C to +85°C	See data sheet Materials Analysis
MAX5457ETE-T				-40°C to +85°C	See data sheet
MAX5457ETE+			THIN QFN;16 pin; Dwg: 21-0139I (PDF) Use pkgcode/variation: T1644+4*	-40°C to +85°C	See data sheet Materials Analysis
MAX5457ETE+T				-40°C to +85°C	See data sheet

More Information

New Product Press Release 2005-12-19

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