MAX5391 データシートの表示（PDF） - Maxim Integrated

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MAX5391

Dual 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers

Maxim Integrated 

MAX5391/MAX5393

EVALUATION KIT AVAILABLE

Dual 256-Tap, Volatile, Low-Voltage

Linear Taper Digital Potentiometers

General Description

The MAX5391/MAX5393 dual 256-tap, volatile, low-

voltage linear taper digital potentiometers offer three

end-to-end resistance values of 10kΩ, 50kΩ, and 100kΩ.

Operating from a single +1.7V to +5.5V power supply,

these devices provide a low 35ppm/°C end-to-end tem-

perature coefficient. The devices feature an SPI interface.

The small package size, low supply voltage, low sup-

ply current, and automotive temperature range of the

MAX5391/MAX5393 make the devices uniquely suitable

for the portable consumer market and battery backup

industrial applications.

The MAX5391/MAX5393 include two digital potentiom-

eters in a voltage-divider configuration. The MAX5391/

MAX5393 are specified over the -40°C to +125°C auto-

motive temperature range and are available in a 16-pin,

3mm x 3mm TQFN and a 14-pin TSSOP package,

respectively.

Applications

●● Low-Voltage Battery Applications

●● Portable Electronics

●● Mechanical Potentiometer Replacement

●● Offset and Gain Control

●● Adjustable Voltage References/Linear Regulators

Features

●● Dual 256-Tap Linear Taper Positions

●● Single +1.7V to +5.5V Supply Operation

●● Low 12μA Quiescent Supply Current

●● 10kΩ, 50kΩ, and 100kΩ End-to-End Resistance

Values

●● SPI-Compatible Interface

●● Wiper Set to Midscale on Power-Up

●● -40°C to +125°C Operating Temperature Range

Ordering Information

PART

PIN-PACKAGE

END-TO-END

RESISTANCE (kΩ)

MAX5391LATE+ 16 TQFN-EP*

10

MAX5391MATE+ 16 TQFN-EP*

50

MAX5391NATE+ 16 TQFN-EP*

100

MAX5393LAUD+ 14 TSSOP

10

MAX5393MAUD+ 14 TSSOP

50

MAX5393NAUD+ 14 TSSOP

100

Note: All devices are specified in the -40°C to +125°C tem-

perature range.

+Denotes lead(Pb)-free/RoHS-compliant package.

*EP = Exposed paddle.

Functional Diagram

VDD BYP

HA

WA

LA

CHARGE

PUMP

CS

LATCH

256 DECODER

HB

SCLK

SPI

POR

MAX5391

MAX5393

DIN

WB

LATCH

256 DECODER

LB

GND

19-5035; Rev 3; 10/14

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