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AD5144BRUZ100-RL7 Fiches technique(PDF) 2 Page - Analog Devices

No de pièce AD5144BRUZ100-RL7
Description  The AD5124/AD5144/AD5144A potentiometers provide a nonvolatile solution for 128-/256-position adjustment applications, offering guaranteed low resistor tolerance errors of 짹8% and up to 짹6 mA current density in the Ax, Bx, and Wx pins.
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD5144BRUZ100-RL7 Fiches technique(HTML) 2 Page - Analog Devices

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AD5124/AD5144/AD5144A
Data Sheet
Rev. A | Page 2 of 36
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Functional Block Diagrams—TSSOP ............................................ 3
Specifications..................................................................................... 4
Electrical Characteristics—AD5124 .......................................... 4
Electrical Characteristics—AD5144 and AD5144A................ 7
Interface Timing Specifications................................................ 10
Shift Register and Timing Diagrams ....................................... 11
Absolute Maximum Ratings.......................................................... 13
Thermal Resistance .................................................................... 13
ESD Caution................................................................................ 13
Pin Configurations and Function Descriptions ......................... 14
Typical Performance Characteristics ........................................... 17
Test Circuits..................................................................................... 22
Theory of Operation ...................................................................... 23
RDAC Register and EEPROM.................................................. 23
Input Shift Register .................................................................... 23
Serial Data Digital Interface Selection, DIS............................ 23
SPI Serial Data Interface............................................................ 23
I2C Serial Data Interface ............................................................ 25
I2C Address.................................................................................. 25
Advanced Control Modes ......................................................... 27
EEPROM or RDAC Register Protection ................................. 28
Load RDAC Input Register (LRDAC) ..................................... 28
RDAC Architecture.................................................................... 31
Programming the Variable Resistor......................................... 31
Programming the Potentiometer Divider............................... 32
Terminal Voltage Operating Range ......................................... 32
Power-Up Sequence ................................................................... 32
Layout and Power Supply Biasing ............................................ 32
Outline Dimensions ....................................................................... 33
Ordering Guide .......................................................................... 34
REVISION HISTORY
12/12—Rev. 0 to Rev. A
Changes to Table 12 and Table 13 ................................................ 25
10/12—Revision 0: Initial Version


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