max5436eubt Maxim Integrated Products, Inc., max5436eubt Datasheet

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max5436eubt

Manufacturer Part Number
max5436eubt
Description
?15v, 128-tap, Low-drift Digital Potentiometers
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
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
-
♦ +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
♦ Low Temperature Coefficient
♦ Small-Footprint Packages
♦ Glitchless Switching Between the Resistor Taps
♦ 3-Wire SPI/QSPI/MICROWIRE-Compatible Serial
♦ 50k /100k End-to-End Resistances
♦ Power-On Reset: Wiper Goes to Midscale
MAX5436EUB
MAX5437EUD
MAX5438EUB
MAX5439EUD
TOP VIEW
SCLK
(MAX5437/MAX5439)
Interface
(Position 64)
GND
DIN
V
CS
SS
35ppm/°C (End-to-End)
5ppm/°C (Ratiometric)
10-Pin µMAX (MAX5436/MAX5438)
14-Pin TSSOP (MAX5437/MAX5439)
PART
1
2
3
4
5
MAX5438
MAX5436
MAX
-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
2
3
4
5
6
7
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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max5436eubt Summary of contents

Page 1

Rev 3; 9/04 ±15V, 128-Tap, Low-Drift Digital Potentiometers General Description 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 ...

Page 2

Low-Drift Digital Potentiometers ABSOLUTE MAXIMUM RATINGS V to GND GND........................................-0.3V to +34V GND GND........................................-34V to +0. ..............................................................-0.3V to +34V ........................................................-6.3V ...

Page 3

Low-Drift Digital Potentiometers ELECTRICAL CHARACTERISTICS (continued +15V -15V +5V +25°C, unless otherwise noted.) A PARAMETER SYMBOL Input High Voltage Input Low Voltage Input Leakage Current Input ...

Page 4

Low-Drift Digital Potentiometers ELECTRICAL CHARACTERISTICS (continued +15V -15V +5V +25°C, unless otherwise noted.) A PARAMETER SYMBOL Analog Supply Separation Digital Supply Voltage Digital Supply to Negative ...

Page 5

Low-Drift Digital Potentiometers (V = +15V -15V +5V END-TO-END RESISTANCE % CHANGE vs. TEMPERATURE 0.15 0.10 0.05 0 50k -0.05 -0.10 100k -0.15 -0.20 -0.25 -40 - ...

Page 6

Low-Drift Digital Potentiometers (V = +15V -15V +5V VOLTAGE-DIVIDER DNL vs. INPUT CODE (100k ) 0.010 0.008 0.006 0.004 0.002 0 -0.002 -0.004 -0.006 -0.008 -0.010 ...

Page 7

Low-Drift Digital Potentiometers PIN NAME MAX5436/ MAX5437/ MAX5438 MAX5439 1 1 SCLK 2 2 DIN SHDN — GND — 7 OUT — 8 IN- — 9 IN+ 6 ...

Page 8

Low-Drift Digital Potentiometers Don’t Care (MSB) First Bit Loaded Figure 1. Serial Data Format CS SCLK MSB LOADED DIN D7 D6 MSB TIME Figure 2. Serial Interface Timing Diagram CS t CSS t CSO SCLK ...

Page 9

Low-Drift Digital Potentiometers +15V V S MAX427 -15V R2 L MAX5436– R1 MAX5439 Figure 4. Noninverting Amplifier V BATT DC/DC CONVERTER (SIMPLIFIED) CONTROL MAX629 Figure 5a. Simplified LCD Contrast ...

Page 10

Low-Drift Digital Potentiometers 7-BIT 7 DECODE 7-BIT LATCH SHIFT REGISTER DIN SCLK POR CLOCK LOGIC CS GND 10 ______________________________________________________________________________________ 128 W DIN MAX5436/ SCLK MAX5438 ...

Page 11

Low-Drift Digital Potentiometers (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages Ø 0.50±0.1 0.6±0.1 1 0.6±0.1 TOP VIEW ...

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