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AD5122A Fiches technique(PDF) 2 Page - Analog Devices

No de pièce AD5122A
Description  The AD5122A/AD5142A are available in a compact, 16-lead, 3 mm 횞 3 mm LFCSP and a 16-lead TSSOP.
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD5122A Fiches technique(HTML) 2 Page - Analog Devices

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AD5122A/AD5142A
Data Sheet
Rev. A | Page 2 of 32
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Electrical Characteristics—AD5122A ....................................... 3
Electrical Characteristics—AD5142A ....................................... 6
Interface Timing Specifications.................................................. 9
Shift Register and Timing Diagrams ....................................... 10
Absolute Maximum Ratings.......................................................... 11
Thermal Resistance .................................................................... 11
ESD Caution................................................................................ 11
Pin Configurations and Function Descriptions ......................... 12
Typical Performance Characteristics ........................................... 14
Test Circuits..................................................................................... 19
Theory of Operation ...................................................................... 20
RDAC Register and EEPROM.................................................. 20
Input Shift Register .................................................................... 20
I2C Serial Data Interface............................................................ 20
I2C Address.................................................................................. 20
Advanced Control Modes ......................................................... 22
EEPROM or RDAC Register Protection................................. 23
INDEP Pin................................................................................... 23
RDAC Architecture.................................................................... 26
Programming the Variable Resistor......................................... 26
Programming the Potentiometer Divider............................... 27
Terminal Voltage Operating Range ......................................... 27
Power-Up Sequence ................................................................... 27
Layout and Power Supply Biasing............................................ 27
Outline Dimensions....................................................................... 28
Ordering Guide .......................................................................... 29
REVISION HISTORY
12/12—Rev. 0 to Rev. A
Changes to Table 9.......................................................................... 20
10/12—Revision 0: Initial Version


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