MAX5439 Maxim Integrated Products, MAX5439 Datasheet
MAX5439
Manufacturer Part Number
MAX5439
Description
+-15V 128-Tap Low-Drift Digital Potentiometers
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX5439.pdf
(11 pages)
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The MAX5436–MAX5439 are 128-tap high-voltage (±5V
to ±15V) digital potentiometers in packages that are half
the size of comparable devices in 8-pin SO. They perform
the same function as mechanical potentiometers, but
replace the mechanics with a simple digital interface. The
digital logic is powered by a separate single +2.7V to
+5.25V supply voltage (V
own analog supplies (V
V
allows for greater flexibility in voltage ranges that can be
used with these devices. Examples of analog supply
ranges include not only dual voltages of ±5V to ±15V, but
single-supply voltages, such as +10V, +15V, +30V, -30V,
and more, as long as the ranges of V
V
The MAX5437/MAX5439 include an on-chip, high-
voltage, uncommitted amplifier, providing additional
reductions in board space and cost. Other features
include low 35ppm/°C end-to-end and 5ppm/°C ratio-
metric resistor temperature coefficients, a 3-wire SPI™/
QSPI™/MICROWIRE™-compatible serial interface, and
a power-on reset to midscale.
The MAX5436/MAX5438 are available in 10-pin µMAX
packages. The MAX5437/MAX5439 are available in 14-
pin TSSOP package. Each device is guaranteed over
the extended temperature range of -40°C to +85°C.
19-2657; Rev 3; 9/04
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
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.
±15V, 128-Tap, Low-Drift Digital Potentiometers
DD
SS
are met.
- V
LCD Screen Contrast Adjustment
Data-Acquisition Systems
Mechanical Potentiometer Replacement
Low-Drift Programmable Gain Amplifier
Audio Volume Control
SS
to be greater than 9V and less than 31.5V. This
________________________________________________________________ Maxim Integrated Products
General Description
CC
DD
). The resistor string uses its
and V
Applications
DD
SS
- V
) that require
SS
and V
CC
-
MAX5436EUB
MAX5437EUD
MAX5438EUB
MAX5439EUD
TOP VIEW
SCLK
+10V to +30V Single-Supply Operation
-28V to -10V Single Negative Supply Operation
±5V to ±15V Dual-Supply Operation
128 Tap Positions
Uncommitted High-Voltage Amplifier
(MAX5437/MAX5439)
Low Temperature Coefficient
35ppm/°C (End-to-End)
5ppm/°C (Ratiometric)
Small-Footprint Packages
Glitchless Switching Between the Resistor Taps
3-Wire SPI/QSPI/MICROWIRE-Compatible Serial
Interface
50kΩ/100kΩ End-to-End Resistances
Power-On Reset: Wiper Goes to Midscale
(Position 64)
GND
DIN
V
CS
SS
10-Pin µMAX (MAX5436/MAX5438)
14-Pin TSSOP (MAX5437/MAX5439)
PART
1
2
3
4
5
MAX5438
MAX5436
µMAX
-40°C to +85°C 10 µMAX
-40°C to +85°C 14 TSSOP
-40°C to +85°C 10 µMAX
-40°C to +85°C 14 TSSOP
TEMP RANGE
Ordering Information
10
9
8
7
6
V
L
W
H
V
CC
DD
Pin Configurations
SHDN
SCLK
GND
OUT
DIN
V
PIN-
PACKAGE
CS
SS
1
4
5
6
7
2
3
www.DataSheet4U.com
MAX5437
MAX5439
TSSOP
Features
RESISTANCE
(k )
100
100
50
50
14
13
12
11
10
9
8
V
L
W
H
V
IN+
IN-
CC
DD
1
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