MAX5452EUB+ Maxim Integrated Products, MAX5452EUB+ Datasheet

IC DGTL POT DUAL 256-TAP 10-UMAX

MAX5452EUB+

Manufacturer Part Number
MAX5452EUB+
Description
IC DGTL POT DUAL 256-TAP 10-UMAX
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX5451EUD.pdf (12 pages)

Specifications of MAX5452EUB+

Taps
256
Resistance (ohms)
50K
Number Of Circuits
2
Temperature Coefficient
35 ppm/°C Typical
Memory Type
Volatile
Interface
Up/Down
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
10-MSOP, Micro10™, 10-uMAX, 10-uSOP
Resistance In Ohms
50K
Number Of Pots
Dual
Taps Per Pot
256
Resistance
50 KOhms
Wiper Memory
Volatile
Digital Interface
Up/Down
Operating Supply Voltage
2.7 V to 5.5 V
Supply Current
2 uA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Description/function
Dual, 256-Tap, Up/Down Interface Digital Potentiometers
Mounting Style
SMD/SMT
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Tolerance
25 %
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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
V
U/D
W1
DD
L1
10-Pin µMAX (MAX5450/MAX5452/MAX5454)
14-Pin TSSOP (MAX5451/MAX5453/MAX5455)
PART
1
2
3
4
5
MAX5450
MAX5452
MAX5454
MAX
10 µMAX
14 TSSOP
10 µMAX
14 TSSOP
10 µMAX
14 TSSOP
PIN-PACKAGE
10
9
8
7
6
Ordering Information
CS2
INC
GND
W2
L2
Pin Configurations
U/D1
U/D2
CS1
V
W1
H1
DD
L1
1
2
3
4
5
6
7
R (k )
MAX5451
MAX5453
MAX5455
100
100
10
10
50
50
TSSOP
Features
14
13
12
11
10
U10C-4
U10C-4
U10C-4
9
8
CODE
U14-1
U14-1
U14-1
PKG
CS2
INC1
INC2
GND
W2
H2
L2
1

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MAX5452EUB+ Summary of contents

Page 1

... Adjustable Voltage References Adjustable Linear Regulators Programmable Filters, Delays, Time Constants Impedance Matching µMAX is a registered trademark of Maxim Integrated Products, Inc. ________________________________________________________________ Maxim Integrated Products 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. ...

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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