max5393naud Maxim Integrated Products, Inc., max5393naud Datasheet

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max5393naud

Manufacturer Part Number
max5393naud
Description
Dual 256-tap, Volatile, Low-voltage Linear Taper Digital Potentiometers
Manufacturer
Maxim Integrated Products, Inc.
Datasheet

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Part Number:
max5393naud+
Manufacturer:
Maxim
Quantity:
4 949
19-5035; Rev 0; 10/09
The MAX5391/MAX5393 dual 256-tap, volatile, low-
voltage linear taper digital potentiometers offer three
end-to-end resistance values of 10kI, 50kI, and 100kI.
Operating from a single +1.7V to +5.5V power sup-
ply, these devices provide a low 35ppm/NC end-to-end
temperature coefficient. The devices feature an SPIK
interface.
The small package size, low supply voltage, low sup-
ply current, and automotive temperature range of the
MAX5391/MAX5393 make the devices uniquely suitable
for the portable consumer market, battery backup indus-
trial applications, and the automotive market.
The MAX5391/MAX5393 include two digital potentio-
meters in a voltage-divider configuration. The MAX5391/
MAX5393 are specified over the -40NC to +125NC auto-
motive temperature range and are available in a 16-pin,
3mm x 3mm TQFN and a 14-pin TSSOP package,
respectively.
SPI is a trademark of Motorola, Inc.
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.
Low-Voltage Battery Applications
Portable Electronics
Mechanical Potentiometer Replacement
Offset and Gain Control
Adjustable Voltage References/Linear Regulators
Automotive Electronics
_______________________________________________________________ Maxim Integrated Products 1
General Description
Linear Taper Digital Potentiometers
Dual 256-Tap, Volatile, Low-Voltage
Applications
S
S
S
S
S
S
S
Note: All devices are specified in the -40NC to +125NC tem-
perature range.
+Denotes a lead(Pb)-free/RoHS-compliant package
*EP = Exposed pad.
MAX5393MAUD+
MAX5393LAUD+
MAX5393NAUD+
MAX5391MATE+
MAX5391LATE+
MAX5391NATE+
SCLK
Dual 256-Tap Linear Taper Positions
Single +1.7V to +5.5V Supply Operation
Low 12µA Quiescent Supply Current
10kI, 50kI, and 100kI End-to-End Resistance
Values
SPI-Compatible Interface
Wiper Set to Midscale on Power-Up
-40NC to +125NC Operating Temperature Range
DIN
CS
PART
CHARGE
PUMP
V
SPI
DD
BYP
PIN-PACKAGE
LATCH
LATCH
Ordering Information
POR
16 TQFN-EP*
16 TQFN-EP*
16 TQFN-EP*
14 TSSOP
14 TSSOP
14 TSSOP
Functional Diagram
HA
GND
256 DECODER
256 DECODER
MAX5391
MAX5393
WA
RESISTANCE (kI)
END-TO-END
Features
100
100
LA
10
50
10
50
HB
WB
LB

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max5393naud Summary of contents

Page 1

... Wiper Set to Midscale on Power-Up S -40NC to +125NC Operating Temperature Range S PART MAX5391LATE+ MAX5391MATE+ MAX5391NATE+ MAX5393LAUD+ Applications MAX5393MAUD+ MAX5393NAUD+ Note: All devices are specified in the -40NC to +125NC tem- perature range. +Denotes a lead(Pb)-free/RoHS-compliant package *EP = Exposed pad. CS SCLK DIN Features Ordering Information END-TO-END ...

Page 2

Dual 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers ABSOLUTE MAXIMUM RATINGS V to GND ...........................................................-0.3V to +6V DD H_, W_ GND ......................................-0.3V to the lower of All Other Pins to GND .............................................-0.3V to +6V Continuous Current into H_, ...

Page 3

Dual 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers ELECTRICAL CHARACTERISTICS (continued +1.7V to +5.5V +25NC.) (Note 1) A PARAMETER SYMBOL Charge-Pump Feedthrough at W_ POWER SUPPLIES Supply ...

Page 4

Dual 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers Figure 1. Voltage-Divider and Variable Resistor Configurations (V = 1.8V +25NC, unless otherwise noted SUPPLY CURRENT vs. TEMPERATURE 2.6V ...

Page 5

Dual 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers (V = 1.8V +25NC, unless otherwise noted WIPER RESISTANCE vs. WIPER VOLTAGE 140 120 100 1. 2.6V DD ...

Page 6

Dual 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers (V = 1.8V +25NC, unless otherwise noted VOLTAGE-DIVIDER DNL vs. TAP POSITION (50kI) 0.10 0.08 0.06 0.04 0.02 0 -0.02 -0.04 -0.06 -0.08 -0. 102 153 ...

Page 7

Dual 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers (V = 1.8V +25NC, unless otherwise noted MIDSCALE FREQUENCY RESPONSE (10kI - 1. P-P ...

Page 8

Dual 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers TOP VIEW MAX5391 *EP = EXPOSED PAD PIN NAME MAX5391 MAX5393 (TQFN-EP) (TSSOP ...

Page 9

Dual 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers Detailed Description The MAX5391/MAX5393 dual 256-tap, volatile, low-volt- age linear taper digital potentiometers offer three end-to- end resistance values of 10kI, 50kI, and 100kI. Each potentiometer consists of 255 fixed resistors in ...

Page 10

Dual 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers CSO CSS SCLK DS DIN Figure 3. SPI Timing Diagram REG A: The data byte writes to register A, and the wiper of potentiometer A moves ...

Page 11

Dual 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers Figure 4. Variable-Gain Noninverting Amplifier OUT1 OUT2 H_ H_ MAX8866 SET1 SET2 Figure 6. Adjustable Dual Linear Regulator ______________________________________________________________________________________ V OUT Figure ...

Page 12

Dual 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers Variable-Gain Current-to-Voltage Converter Figure 8 shows a variable-gain current-to-voltage con- verter using a potentiometer as a variable resistor. LCD Bias Control Figure 9 shows a positive LCD bias control circuit using a ...

Page 13

... Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 2009 Maxim Integrated Products © Package Information PACKAGE CODE U14+1 T1633+5 Maxim is a registered trademark of Maxim Integrated Products, Inc. DOCUMENT NO. 21-0066 21-0136 13 ...

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