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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX5435 Datasheet

32-Tap Nonvolatile I2C Linear Digital Potentiometers

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19-3511; Rev 3; 11/07
EVAALVUAAILTAIOBNLEKIT
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32-Tap, Nonvolatile, I2C, Linear, Digital
Potentiometers
General Description
The MAX5432–MAX5435 nonvolatile, linear-taper, digi-
tal potentiometers perform the function of a mechanical
potentiometer, but replace the mechanics with a simple
2-wire serial interface. Each device performs the same
function as a discrete potentiometer or a variable resis-
tor and has 32 tap points.
The MAX5432–MAX5435 feature an internal, nonvolatile,
electrically erasable programmable read-only memory
(EEPROM) that returns the wiper to its previously stored
position at power-up. The fast-mode I2C-compatible
serial interface allows communication at data rates up to
400kbps, minimizing board space and reducing inter-
connection complexity. Each device is available with
multiple factory-preset I2C addresses (see the Ordering
Information/Selector Guide).
Use the MAX5432–MAX5435 in applications requiring
digitally controlled resistors. Two resistance values are
available (50kand 100k) in a voltage-divider or vari-
able resistor configuration. The nominal resistor temper-
ature coefficient is 35ppm/°C end-to-end, and only
5ppm/°C ratiometric, making the devices ideal for
applications requiring a low-temperature-coefficient
variable resistor such as low-drift, programmable-gain
amplifier circuit configurations.
The MAX5432/MAX5433 are available in a 3mm x 3mm
8-pin TDFN package and the MAX5434/MAX5435 are
available in a 6-pin thin SOT23 package. The MAX5432–
MAX5435 are specified over the extended (-40°C to
+85°C) temperature range.
Applications
Mechanical Potentiometer Replacement
Low-Drift Programmable-Gain Amplifiers
Volume Control
Liquid-Crystal Display (LCD) Screen Adjustment
Features
Tiny 3mm x 3mm 8-Pin TDFN and 6-Pin Thin
SOT23 Packages
Power-On Recall of Wiper Position from
Nonvolatile Memory
35ppm/°C End-to-End Resistance Temperature
Coefficient
5ppm/°C Ratiometric Temperature Coefficient
50k/100kResistor Values
Fast 400kbps I2C-Compatible Serial Interface
500nA (typ) Static Supply Current
+2.7V to +5.25V Single-Supply Operation
32 Tap Positions
±0.15 LSB INL (typ), ±0.15 LSB DNL (typ)
Pin Configurations
TOP VIEW
+
H1
SDA 2
GND 3
SCL 4
MAX5432
MAX5433
TDFN
8W
+
VDD 1
7 L GND 2
6 A0 SCL 3
5 VDD
MAX5434
MAX5435
SOT23
6L
5W
4 SDA
Ordering Information/Selector Guide
PART
PIN-PACKAGE
TOP MARK
I2C ADDRESS
MAX5432LETA+
MAX5432META+
MAX5433LETA+
MAX5433META+
MAX5434LEZT+T
8 TDFN-EP*
8 TDFN-EP*
8 TDFN-EP*
8 TDFN-EP*
6 Thin SOT23-6
ANG
ANI
ANF
ANH
AABX
010100A0**
010110A0**
010100A0**
010110A0**
0101000
*EP = Exposed pad.
**A0 represents the logic state of input A0 of the device in the TDFN package.
+Denotes a lead-free package.
T = Tape and reel.
Note: All devices are specified over the -40°C to +85°C operating temperature range.
Ordering Information/Selector Guide continued at end of data sheet.
R (k)
50
50
100
100
50
PKG CODE
T833-1
T833-1
T833-1
T833-1
Z6-1
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX5435 Datasheet

32-Tap Nonvolatile I2C Linear Digital Potentiometers

No Preview Available !

www.DataSheet4U.com
32-Tap, Nonvolatile, I2C, Linear, Digital
Potentiometers
ABSOLUTE MAXIMUM RATINGS
VDD to GND ...........................................................-0.3V to +6.0V
SDA, SCL to GND..................................................-0.3V to +6.0V
A0, H, L, and W to GND .............................-0.3V to (VDD + 0.3V)
Maximum Continuous Current into H, L, and W
MAX5432/MAX5434.....................................................±1.3mA
MAX5433/MAX5435.....................................................±0.6mA
Input/Output Latchup Immunity........................................±50mA
Continuous Power Dissipation (TA = +70°C)
6-Pin Thin SOT23 (derate 9.1mW/°C above +70°C) ....727mW
8-Pin TDFN (derate 18.2mW/°C above +70°C) ......1454.5mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VDD = +2.7V to +5.25V, VH = VDD, VL = GND, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VDD = +5V, TA =
+25°C.) (Note 1)
PARAMETER
DC PERFORMANCE
Resolution
End-to-End Resistance
SYMBOL
CONDITIONS
RH-L
MAX5432/MAX5434
MAX5433/MAX5435
MIN TYP MAX UNITS
32 Taps
37.5 50 62.5
75 100 125
k
End-to-End Resistance
Temperature Coefficient
TCR
35 ppm/°C
Ratiometric Resistance
Temperature Coefficient
5 ppm/°C
Integral Nonlinearity
Differential Nonlinearity
Full-Scale Error (Note 4)
Zero-Scale Error (Note 5)
Wiper Resistance
DIGITAL INPUTS
INL
DNL
RW
Variable resistor (Note 2)
Voltage-divider,
MAX5432/MAX5433 (Note 3)
Variable resistor (Note 2)
Voltage-divider,
MAX5432/MAX5433 (Note 3)
MAX5432, 50k
MAX5433, 100k
MAX5432, 50k
MAX5433, 100k
MAX5432/MAX5433 (Note 6)
VDD = 5V
VDD = 3V
VDD = 5V
VDD = 3V
VDD = 5V
VDD = 3V
VDD = 5V
VDD = 3V
±0.15
±0.15
±0.15
±0.15
±0.15
±0.15
±0.15
±0.15
610
±0.5
±0.5
±0.5
±0.5
±0.5
±0.5
±0.5
±0.5
-0.5
-0.5
+0.5
+0.5
1200
LSB
LSB
LSB
LSB
Input High Voltage
Input Low Voltage
Input Leakage Current
Input Capacitance
VIH (Note 7)
VIL
ILEAK
(Note 7)
0.7 x
VDD
V
0.3 x
VDD
V
±1 µA
5 pF
2 _______________________________________________________________________________________


Part Number MAX5435
Description 32-Tap Nonvolatile I2C Linear Digital Potentiometers
Maker Maxim Integrated Products
Total Page 19 Pages
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