MAX5451EUD Maxim Integrated Products, MAX5451EUD Datasheet

MAX5451EUD

Manufacturer Part Number

MAX5451EUD

Description

Digital Potentiometer ICs

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX5451EUD.pdf (12 pages)

Specifications of MAX5451EUD

Number Of Pots

Dual

Taps Per Pot

256

Resistance

10 KOhms

Wiper Memory

Volatile

Digital Interface

Increment-Decrement

Operating Supply Voltage

5 V

Supply Current

0.7 uA

Maximum Operating Temperature

+ 85 C

Minimum Operating Temperature

- 40 C

Mounting Style

SMD/SMT

Supply Voltage (max)

5.5 V

Supply Voltage (min)

2.7 V

Package / Case

TSSOP-14

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

MAX5451EUD

Manufacturer:

MAXIM/美信

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MAX5451EUD+

Manufacturer:

MICREL

Quantity:

4 212

Current page: 1 of 12
Download datasheet (487Kb)

The MAX5450–MAX5455 are a family of dual digital

potentiometers that perform the same function as a

mechanical potentiometer or variable resistor. The

MAX5451/MAX5453/MAX5455 have two 3-terminal

potentiometers and the MAX5450/MAX5452/MAX5454

have two 2-terminal variable resistors. The MAX5450–

MAX5455 operate from a +2.7V to +5.5V single-supply

voltage and use an ultra-low supply current of 0.1µA.

These devices consist of two fixed resistors each

with 256 digitally-controlled wiper contacts. The conve-

nient power-on reset (POR) sets the wiper to midscale

position at power-up and the easy-to-use up/down

interface allows glitchless switching between

resistor taps. Six inputs control the 14-pin MAX5451/

MAX5453/MAX5455 potentiometers. Four inputs control

the 10-pin MAX5450/MAX5452/MAX5454 variable resis-

tors.

The MAX5450–MAX5455 are ideal for applications

requiring digitally-controlled resistors. Three resistance

values are available: 10k , 50k , and 100k . An end-

to-end resistor temperature coefficient of 35ppm/°C

and a ratiometric temperature coefficient of 5ppm/°C

make the MAX5450–MAX5455 excellent choices for

adjustable gain circuit requiring low-temperature drift

The MAX5450–MAX5455 are available in 10-pin µMAX

and 14-pin TSSOP packages. Each device is guaran-

teed over the extended–industrial temperature range

(-40°C to +85°C).

19-1997; Rev 2; 2/06

µMAX is a registered trademark of Maxim Integrated Products, Inc.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Mechanical Potentiometer Replacement

Low-Drift Programmable-Gain Amplifier (PGA)

Volume Control

LCD Screen Adjustment

Adjustable Voltage References

Adjustable Linear Regulators

Programmable Filters, Delays, Time Constants

Impedance Matching

________________________________________________________________ Maxim Integrated Products

General Description

Dual, 256-Tap, Up/Down Interface,

Applications

♦ Small-Footprint Packages

♦ 256-Tap Positions

♦ Independent Up/Down Potentiometer Controls

♦ Ultra-Low 0.1µA Supply Current

♦ +2.7V to +5.5V Single-Supply Operation

♦ Low 35ppm/°C End-to-End Temperature

♦ Power-On Reset Sets Wiper to Midscale

♦ Glitchless Switching Between the Resistor Taps

♦ 10k , 50k , 100k Resistance Values

Note: All devices specified over the -40°C to +85°C operating

range.

Digital Potentiometers

MAX5450EUB

MAX5451EUD

MAX5452EUB

MAX5453EUD

MAX5454EUB

MAX5455EUD

(MAX5451/MAX5453/MAX5455)

Coefficient

(Position 127)

CS1

TOP VIEW

U/D

10-Pin µMAX (MAX5450/MAX5452/MAX5454)

14-Pin TSSOP (MAX5451/MAX5453/MAX5455)

PART

MAX5450

MAX5452

MAX5454

MAX

10 µMAX

14 TSSOP

10 µMAX

14 TSSOP

10 µMAX

14 TSSOP

PIN-PACKAGE

Ordering Information

CS2

INC

GND

Pin Configurations

U/D1

U/D2

CS1

R (k )

MAX5451

MAX5453

MAX5455

100

TSSOP

Features

U10C-4

CODE

U14-1

PKG

CS2

INC1

INC2

GND

Related parts for MAX5451EUD

MAX5451EUD Summary of contents

Page 1

... Power-On Reset Sets Wiper to Midscale (Position 127) ♦ Glitchless Switching Between the Resistor Taps ♦ 10k , 50k , 100k Resistance Values PART ® MAX5450EUB MAX5451EUD MAX5452EUB MAX5453EUD MAX5454EUB Applications MAX5455EUD Note: All devices specified over the -40°C to +85°C operating range. ...

Page 2

Dual, 256-Tap, Up/Down Interface, Digital Potentiometers ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +6V DD CS_, INC_, and U/D_ to GND...................................-0.3V to +6V H_, L_ GND ......................................-0. Maximum Continuous Current into H_, L_, and W_............±1mA ...

Page 3

Dual, 256-Tap, Up/Down Interface, ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.5V unless otherwise noted.) PARAMETER SYM DIGITAL INPUTS (Note 5) Input High Voltage Input ...

Page 4

Dual, 256-Tap, Up/Down Interface, Digital Potentiometers (V = +5V +25°C, unless otherwise noted WIPER RESISTANCE vs. WIPER VOLTAGE (10k ) 300 280 V = +3V 260 DD 240 220 V = +5V 200 DD 180 160 ...

Page 5

Dual, 256-Tap, Up/Down Interface +5V +25°C, unless otherwise noted VARIABLE RESISTOR INL vs. WIPER POSITION (MAX5453) 0.04 0.02 0.00 -0.02 -0.04 -0.06 -0.08 -0.10 -0.12 -0.14 -0. 128 160 ...

Page 6

Dual, 256-Tap, Up/Down Interface, Digital Potentiometers ( V = +5V +25°C, unless otherwise noted SUPPLY CURRENT vs. SUPPLY VOLTAGE 1.4 DIGITAL INPUTS + V DD 1.2 1.0 0.8 0.6 0.4 0 ...

Page 7

Dual, 256-Tap, Up/Down Interface, PIN MAX5451 MAX5450 MAX5453 MAX5452 MAX5455 MAX5454 1 1 — — 3 — — — — — 13 ...

Page 8

Dual, 256-Tap, Up/Down Interface, Digital Potentiometers CS_ INC_ U/D_ W_ Figure 1. Digital Interface and Timing diagram Detailed Description The MAX5450–MAX5455 contain two independent resistor arrays each with 255-resistive elements. 256- tap points are accessible to the wiper along the ...

Page 9

Dual, 256-Tap, Up/Down Interface 256 R 255 S R 255 254 S 254 Figure 2. Simplified Digital Potentiometer Resistor Array CS1 UP/DOWN POSITION INC1 COUNTER DECODER U/D1 ...

Page 10

Dual, 256-Tap, Up/Down Interface, Digital Potentiometers MAX4493 MAX5450 MAX5452 MAX5454 L Figure 6a. Variable Resistor Adjustable-Gain Amplifier MAX4493 MAX5451 MAX5453 MAX5455 Figure 6b. Potentiometer ...

Page 11

Dual, 256-Tap, Up/Down Interface Ø 0.50±0.1 0.6±0.1 1 0.6±0.1 TOP VIEW FRONT VIEW ______________________________________________________________________________________ Digital Potentiometers 10 1 BOTTOM VIEW E2 GAGE PLANE SIDE VIEW Package ...

Page 12

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2006 Maxim Integrated Products ...

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