MAX5394

PRODUCTION

Single, 256-Tap Volatile, SPI, Low-Voltage Linear Taper Digital Potentiometer

Industry’s Smallest, Lowest Power, Lowest Voltage Digital Potentiometer

Data Sheet (Rev. 3) Product Selection Table

Part Models: 6
1ku List Price: Starting From $0.81

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Overview

Single Linear Taper 256-Tap Positions
10kΩ, 50kΩ, and 100kΩ End-to-End Resistance
1.7V to 5.5V Extended Single Supply
0 to 5.25V H, W, L Operating Voltage Independent of V_DD
1µA (typ) Supply Current in Low-Power Mode
±1.0 LSB INL, ±0.5 LSB DNL (max) Wiper Accuracy
Power-On Sets Wiper to Midscale
50ppm/°C End-to-End Temperature Coefficient
5ppm/°C Ratiometric Temperature Coefficient
-40°C to +125°C Operating Temperature Range
2mm x 2mm, 8-Pin TDFN Package
SPI-Compatible Serial Interface

The MAX5394 single, 256-tap volatile, low-voltage linear taper digital potentiometer offers three end-to-end resistance values of 10kΩ, 50kΩ, and 100kΩ. Potentiometer terminals are independent of supply for voltages up to 5.25V with single-supply operation from 1.7V to 5.5V (charge pump enabled). User-controlled shutdown modes allow the H, W, or L terminal to be opened with the wiper position set to zero-code, midcode, full-code, or the value contained in the wiper register. Ultralow-quiescent supply current (< 1µA) can be achieved for supply voltages between 2.6V and 5.5V by disabling the internal charge pump and not allowing potentiometer terminals to exceed the supply voltage by more than 0.3V. The MAX5394 provides a low 50ppm/°C end-to-end temperature coefficient and features a SPI serial interface.

The small package size, low operating supply voltage, low supply current, and automotive temperature range of the MAX5394 make the device uniquely suited for the portable consumer market and battery-backup industrial applications.

The MAX5394 is available in a lead-free, 8-pin TDFN (2mm x 2mm) package. The device operates over the -40°C to +125°C automotive temperature range.

Applications

Battery-Powered Systems
Mechanical Potentiometer Replacement
Portable Electronics
System Calibration

Part Models: 6
1ku List Price: Starting From $0.81

Documentation

Data Sheet 1

MAX5394: Single, 256-Tap Volatile, SPI, Low-Voltage Linear Taper Digital Potentiometer Data Sheet (Rev.3) 02/19/2016

Reliability Data 1

MAX5394 Reliability Data 01/12/2023

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX5394LATA+	Thin Dual Flatpack No Leads, Exposed Pad	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX5394LATA+T	Thin Dual Flatpack No Leads, Exposed Pad	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX5394MATA+	Thin Dual Flatpack No Leads, Exposed Pad	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX5394MATA+T	Thin Dual Flatpack No Leads, Exposed Pad	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX5394NATA+	Thin Dual Flatpack No Leads, Exposed Pad	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX5394NATA+T	Thin Dual Flatpack No Leads, Exposed Pad	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Oct 23, 2013 - 1345_AMENDED ASSEMBLY
		pcn_1345_amended
MAX5394LATA+	PRODUCTION
MAX5394LATA+T	PRODUCTION
MAX5394MATA+	PRODUCTION
MAX5394NATA+	PRODUCTION
Oct 11, 2013 - 1345 ASSEMBLY
		pcn_1345
MAX5394LATA+	PRODUCTION
MAX5394LATA+T	PRODUCTION
MAX5394MATA+	PRODUCTION
MAX5394NATA+	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Hardware Ecosystem

Parts	Product Life Cycle	Description
Digital Potentiometers (DigiPOTs) 2
MAX5391	PRODUCTION	Dual 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers
MAX5395	PRODUCTION	Single, 256-Tap Volatile, I²C, Low-Voltage Linear Taper Digital Potentiometer

Tools & Simulations

Software Development 1

MAX5394M Potentiometer EV Kit Software, 1.0.0

IBIS Model 1

MAX5394 IBIS Model

Evaluation Kits

Evaluation Kit for the MAX5394L, MAX5394M, and MAX5394N

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Features and Benefits

1.7V to 5.5V Wide Input Supply Range
Supports All SPI Family of Devices: 10kΩ, 50kΩ, and 100kΩ End-to-End Resistance
On-Board Microcontroller to Generate SPI Commands
Windows XP-, Windows Vista-, and Windows 7-Compatible Software
USB-Powered (Cable Included)
Fully Assembled and Tested with Proven PCB Layout

Product Details

The MAX5394M evaluation kit (EV kit) demonstrates the MAX5394M single, 256-tap volatile, low-voltage linear digital potentiometer. The device comes in an 8-pin TDFN-EP package. The EV kit provides controls to adjust the wiper and shutdown modes.

The digital potentiometer is controlled by an on-board MAXQ^® microcontroller that provides an SPI interface. The EV kit features Windows XP^®-, Windows Vista^®-, and Windows^® 7-compatible software that provides a simple graphical-user interface (GUI) for exercising the device features.

The EV kit comes with the MAX5394MATA+ (50kΩ end-to-end resistance) installed. Contact the factory for samples of the pin-compatible MAX5394LATA+ (10kΩ end-to-end resistance) and MAX5394NATA+ (100kΩ end-to-end resistance).