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Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 392kB) Download   E-Mail

Description

The MAX5422/MAX5423/MAX5424 nonvolatile, lineartaper, digital potentiometers perform the function of a mechanical potentiometer, but replace the mechanics with a simple 3-wire SPI™-compatible digital interface. Each device performs the same function as a discrete potentiometer or variable resistor and has 256 tap points. The devices feature an internal, nonvolatile EEPROM used to store the wiper position for initialization during power-up. The 3-wire SPI-compatible serial interface allows communication at data rates up to 5MHz, minimizing board space and reducing interconnection complexity in many applications. The MAX5422/MAX5423/MAX5424 provide three nominal resistance values: 50k (MAX5422), 100k (MAX5423), or 200k (MAX5424). The nominal resistor temperature coefficient is 35ppm/°C end-to-end and only 5ppm/°C ratiometric. This makes the devices ideal for applications requiring a low-temperature-coefficient variable resistor, such as low-drift, programmable gainamplifier circuit configurations. The MAX5422/MAX5423/MAX5424 are available in a 3mm x 3mm 8-pin TDFN package, and are specified over the extended -40°C to +85°C temperature range.

An evaluation kit is available:  MAX5422EVKIT  

Key Features		Applications/Uses
Wiper Position Stored in Nonvolatile Memory (EEPROM) and Recalled Upon Power-Up or Interface Command 3mm x 3mm x 0.8mm TDFN Package 35ppm/°C End-to-End Resistance Temperature Coefficient 5ppm/°C Ratiometric Temperature Coefficient 50kΩ, 100kΩ, and 200kΩ Resistor Values 5MHz SPI-Compatible Serial Interface 500nA (typ) Static Supply Current Single-Supply Operation: +2.7V to +5.25V 256 Tap Positions ±0.5 LSB DNL in Voltage-Divider Mode ±0.5 LSB INL in Voltage-Divider Mode		Audio Volume Control Liquid-Crystal Display (LCD) Contrast Control Low-Drift Programmable Filters Low-Drift Programmable-Gain Amplifiers Mechanical Potentiometer Replacements

Diagram

Functional Diagram

Application Notes

Application Note 2398: 3V DACs Used in ±10V Applications - MAX5423 Application Note 3996: Logging the Linear Digital Potentiometer - MAX5422, MAX5423, MAX5424

Evaluation Kits

MAX5422EVKIT

Design Guides

Digital Potentiometers (PDF)

Reliability Reports

Reliability Report: MAX5422.pdf MAX5424.pdf Show FIT data for: MAX5422 MAX5423 MAX5424 Request Reliability Report for: MAX5423

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: 1-11 of 11

MAX5422	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX5422ETA+			Active	TDFN-EP;8 pin;10 mm² Outline Drawing: 21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5422ETA-T			Active	TDFN-EP;8 pin;10 mm² Outline Drawing: 21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX5422ETA+T			Active	TDFN-EP;8 pin;10 mm² Outline Drawing: 21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5423	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX5423ETA+			Active	TDFN-EP;8 pin;10 mm² Outline Drawing: 21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5423ETA			Active	TDFN-EP;8 pin;10 mm² Outline Drawing: 21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX5423ETA-T			Active	TDFN-EP;8 pin;10 mm² Outline Drawing: 21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX5423ETA+T			Active	TDFN-EP;8 pin;10 mm² Outline Drawing: 21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5424	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX5424ETA+			Active	TDFN-EP;8 pin;10 mm² Outline Drawing: 21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5424ETA			Active	TDFN-EP;8 pin;10 mm² Outline Drawing: 21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX5424ETA-T			Active	TDFN-EP;8 pin;10 mm² Outline Drawing: 21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX5424ETA+T			Active	TDFN-EP;8 pin;10 mm² Outline Drawing: 21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

More Information

Topmark Coding: MAX5422 MAX5423 MAX5424 Product Ad: Download

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