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MAX5471 Datasheet(PDF) 1 Page - Maxim Integrated Products

Part No. MAX5471
Description  32-Tap, Nonvolatile, Linear-Taper Digital Potentiometers
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX5471 Datasheet(HTML) 1 Page - Maxim Integrated Products

 
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General Description
The MAX5471/MAX5472/MAX5474/MAX5475 linear-
taper digital potentiometers function as mechanical
potentiometers, but replace the mechanics with a sim-
ple 3-wire up/down digital interface. These digital
potentiometers feature nonvolatile memory (EEPROM)
to return the wiper to its previously stored position upon
power-up.
The MAX5471/MAX5472 are 2-terminal, variable resistors
in 6-pin SOT23 packages. The MAX5474/MAX5475 are
3-terminal potentiometers in 8-pin SOT23 packages.
The MAX5471/MAX5474 have an end-to-end resistance
of 50k
Ω, and the MAX5472/MAX5475 have an end-
to-end resistance of 100k
Ω. All of these devices have
32 wiper positions, a low ratiometric temperature coeffi-
cient (5ppm/°C), and all operate from a single +2.7V to
+5.25V supply. Each device is guaranteed over the
extended -40
°C to +85°C temperature range.
Applications
Mechanical Potentiometer Replacement
Liquid-Crystal-Display (LCD) Screen Adjustment
Audio Volume Control
Programmable Filters
Features
o Wiper Position Stored in Nonvolatile Memory and
Recalled Upon Power-Up
o Tiny SOT23 Package
o 35ppm/°C End-to-End Resistance Temperature
Coefficient
o 5ppm/°C Ratiometric Temperature Coefficient
o 32 Tap Positions
o Voltage-Divider or Variable-Resistor
Potentiometer Configuration
o 50kΩ and 100kΩ End-to-End Resistance Values
o 1µA (max) Static Supply Current
o 2.7V to 5.25V Single-Supply Operation
o 200,000 Wiper Store Cycles
o 50-Year Wiper Data Retention
32-Tap, Nonvolatile, Linear-Taper Digital
Potentiometers in SOT23
________________________________________________________________ Maxim Integrated Products
1
Ordering Information
19-3067; Rev 0; 10/03
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.
PART
TEMP RANGE
PIN-PACKAGE
MAX5471EZT-T
-40
°C to +85°C
6 Thin SOT23-6
MAX5472EZT-T
-40
°C to +85°C
6 Thin SOT23-6
MAX5474EKA-T
-40
°C to +85°C
8 SOT23-8
MAX5475EKA-T
-40
°C to +85°C
8 SOT23-8
TOP VIEW
L
GND
H
INC
W
1
GND
SOT23-6
SOT23-8
2
3
6
5
4
CS
U/D
U/D
MAX5471
MAX5472
1
VDD
VDD
H
2
3
8
7
6
CS
MAX5474
MAX5475
4
5
INC
Pin Configurations
PART
END-TO-END
RESISTANCE (k
Ω)
TOP MARK
MAX5471EZT
50
ABQN
MAX5472EZT
100
ABQM
MAX5474EKA
50
AEIZ
MAX5475EKA
100
AEIY
Selector Guide


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