max5387laud Maxim Integrated Products, Inc., max5387laud Datasheet

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max5387laud

Manufacturer Part Number
max5387laud
Description
Dual, 256-tap, Volatile, Low-voltage Linear Taper Digital Potentiometer
Manufacturer
Maxim Integrated Products, Inc.
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
MAX5387LAUD
Manufacturer:
MAXIM/美信
Quantity:
20 000
19-5140; Rev 0; 1/10
The MAX5387 dual, 256-tap, volatile, low-voltage lin-
ear taper digital potentiometer offers three end-to-end
resistance values of 10kI, 50kI, and 100kI. Operating
from a single +2.6V to +5.5V power supply, the device
provides a low 35ppm/NC end-to-end temperature coef-
ficient. The device features an I
The small package size, low supply operating voltage,
low supply current, and automotive temperature range
of the MAX5387 make the device uniquely suitable for
the portable consumer market, battery backup industrial
applications, and the automotive market.
The MAX5387 is specified over the automotive -40NC to
+125NC temperature range and is available in a 14-pin
TSSOP package.
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
Dual, 256-Tap, Volatile, Low-Voltage
SDA
SCL
A0
A1
A2
Linear Taper Digital Potentiometer
2
C interface.
Applications
V
I
DD
2
C
LATCH
LATCH
POR
HA
GND
S
S
S
S
S
S
S
Note: All devices are specified over the -40NC to +125NC oper-
ating temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
MAX5387LAUD+
MAX5387MAUD+
MAX5387NAUD+
256 DECODER
256 DECODER
Dual, 256-Tap Linear Taper Positions
Single +2.6V to +5.5V Supply Operation
Low < 1µA Quiescent Supply Current
10kI, 50kI, 100kI End-to-End Resistance Values
I
Power-On Sets Wiper to Midscale
-40NC to + 125NC Operating Temperature Range
MAX5387
2
C-Compatible Interface
WA
PART
LA
PIN-PACKAGE
14 TSSOP
14 TSSOP
14 TSSOP
Ordering Information
Functional Diagram
HB
WB
LB
RESISTANCE (kI)
END-TO-END
Features
100
10
50

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max5387laud Summary of contents

Page 1

... End-to-End Resistance Values C-Compatible Interface S Power-On Sets Wiper to Midscale S -40NC to + 125NC Operating Temperature Range S Applications PART MAX5387LAUD+ MAX5387MAUD+ MAX5387NAUD+ Note: All devices are specified over the -40NC to +125NC oper- ating temperature range. +Denotes a lead(Pb)-free/RoHS-compliant package LATCH 256 DECODER ...

Page 2

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer 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 Potentiometer ELECTRICAL CHARACTERISTICS (continued +2.6V to +5.5V H__ DD L__ T = +25NC.) (Note 1) A PARAMETER SYMBOL Total Harmonic Distortion Plus THD+N Noise Wiper ...

Page 4

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer Figure 1. Voltage-Divider and Variable Resistor Configurations ( +25°C, unless otherwise noted SUPPLY CURRENT vs. TEMPERATURE 1.0 0.9 0 0.7 0.6 0.5 ...

Page 5

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer ( +25°C, unless otherwise noted WIPER RESISTANCE vs. WIPER VOLTAGE (10k I ) 210 190 V = 2.6V DD 170 150 130 DD ...

Page 6

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer ( +25°C, 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 Potentiometer ( +25°C, unless otherwise noted MAX5387 POWER-ON WIPER TRANSIENT (CODE 0 TO 128) 2µs/div CROSSTALK vs. FREQUENCY 0 -20 -40 -60 -80 -100 MAX5387N -120 -140 ...

Page 8

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer PIN NAME Resistor A High Terminal. The voltage at HA can be higher or lower than the voltage at LA. Current 1 HA can flow into or out of HA ...

Page 9

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer Detailed Description The MAX5387 dual, 256-tap, volatile, low-voltage linear taper digital potentiometer offers three end-to-end resis- tance values of 10kI, 50kI, and 100kI. The potenti- ometer consists of 255 fixed resistors in ...

Page 10

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer One data bit is transferred during each clock pulse. The data on the SDA line must remain stable while SCL is high. See Figure 4. The acknowledge bit is a clocked 9th ...

Page 11

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer SDA 0 1 START MSB SCL Figure 6. Slave Address HOW CONTROL BYTE AND DATA BYTE MAP INTO DEVICE REGISTERS ACKNOWLEDGE S SLAVE ADDRESS NOP/W Figure 7. Command and Single Data Byte ...

Page 12

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer 2 Table Command Byte Summary ADDRESS BYTE SCL CYCLE NO REG ...

Page 13

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer Variable Gain Current to Voltage Converter Figure 12 shows a variable gain current to voltage con- verter using a potentiometer as a variable resistor. LCD Bias Control Figure 13 shows a positive ...

Page 14

... Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE 14 TSSOP Maxim is a registered trademark of Maxim Integrated Products, Inc. + OUT ...

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