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Status

Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 168kB) Download   E-Mail

Description

The MAX5407 SOT-PoT™ is a logarithmic taper digital potentiometer with 32 tap points that has 1dB steps between taps. This device is ideal for audio applications, such as volume control and fading/balancing audio signals. The MAX5407 consists of a resistor string and CMOS switches that are digitally controlled through a simple 2-wire serial interface. This device performs the same function as a mechanical potentiometer. The device has a fixed end-to-end resistance of 20kΩ and features zero-crossing detection to minimize the audible noise generated by the wiper transitions. This device has nominal resistor temperature coefficients of 35ppm/°C end-to-end and 5ppm/°C ratiometric. The MAX5407 is available in a space saving 8-pin SOT23 package and is guaranteed from -40°C to +85°C.

Key Features		Applications/Uses
Miniature 3mm x 3mm 8-Pin SOT23 Package Logarithmic Taper with 1dB Steps Between Taps 32 Tap Positions Low 0.35µA Supply Current +2.7V to +5.5V Single-Supply Operation Zero-Crossing Detection to Minimize Audible Clicks During Wiper Transitions Simple Up/Down 2-Wire Serial Data Interface Power-On Reset Wiper Goes to Maximum Attenuation (Lowest Tap Position) 20kΩ End-to-End Resistance		Audio Volume Control Fading/Balancing Audio Signals Mechanical Potentiometer Replacements

Diagram

Functional Diagram

Application Notes

Application Note 161: Using a DS1802 Push-Button Digital Potentiometer to Create an Audio Preamp with Attenuator - MAX5407 Application Note 1828: Audio Gain Control Using Digital Potentiometers - MAX5407

Design Guides

Digital Potentiometers (PDF)

Reliability Reports

Show FIT data for: MAX5407 Request Reliability Report for: MAX5407

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: 1-4 of 4

MAX5407	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX5407EKA			Active	SOT;8 pin;9 mm² Outline Drawing: 21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX5407EKA+			Active	SOT;8 pin;9 mm² Outline Drawing: 21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5407EKA-T			Active	SOT;8 pin;9 mm² Outline Drawing: 21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX5407EKA+T			Active	SOT;8 pin;9 mm² Outline Drawing: 21-0078 (PDF) Land Pattern: 90-0176 (PDF) Use pkgcode/variation: K8SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

More Information

Topmark Coding: MAX5407 New Product Press Release 2002-02-11

Related Products

MAX5408, MAX5409, MAX5410, MAX5411 Dual, Audio, Log Taper Digital Potentiometers More Like This: View Product Families for Similar Products See All Digital Potentiometers (123 Products)

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