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AD5173BRM2.5 Datasheet(PDF) 2 Page - Analog Devices

Part No. AD5173BRM2.5
Description  256-Position, One-Time Programmable, Dual-Channel, I2C Digital Potentiometers
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD5173BRM2.5 Datasheet(HTML) 2 Page - Analog Devices

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AD5172/AD5173
Rev. H | Page 2 of 24
TABLE OF CONTENTS
Features .............................................................................................. 1
 
Applications....................................................................................... 1
 
Functional Block Diagrams............................................................. 1
 
General Description ......................................................................... 1
 
Revision History ............................................................................... 2
 
Specifications..................................................................................... 3
 
Electrical Characteristics: 2.5 kΩ ............................................... 3
 
Electrical Characteristics: 10 kΩ, 50 kΩ, and 100 kΩ ............. 4
 
Timing Characteristics ................................................................ 6
 
Absolute Maximum Ratings............................................................ 7
 
ESD Caution.................................................................................. 7
 
Pin Configurations and Function Descriptions ........................... 8
 
Typical Performance Characteristics ............................................. 9
 
Test Circuits..................................................................................... 14
 
Theory of Operation ...................................................................... 15
 
One-Time Programming (OTP) .............................................. 15
 
Programming the Variable Resistor and Voltage ................... 15
 
Programming the Potentiometer Divider............................... 16
 
ESD Protection ........................................................................... 17
 
Terminal Voltage Operating Range ......................................... 17
 
Power-Up Sequence ................................................................... 17
 
Power Supply Considerations................................................... 17
 
Layout Considerations............................................................... 18
 
I2C Interface .................................................................................... 19
 
Write Mode ................................................................................. 19
 
Read Mode .................................................................................. 19
 
I2C Controller Programming.................................................... 20
 
I2C-Compatible, 2-Wire Serial Bus.......................................... 21
 
Level Shifting for Different Voltage Operation ...................... 22
 
Outline Dimensions ....................................................................... 23
 
Ordering Guide .......................................................................... 23
 
REVISION HISTORY
4/09—Rev. G to Rev. H
Changes to DC Characteristics—Rheostat Mode Parameter and
to DC Characteristics—Potentiometer Divider Mode Parameter,
Table 1 ................................................................................................ 3
12/08—Rev. F to Rev. G
Changes to OTP Supply Voltage Parameter, Table 1.................... 3
Changes to OTP Supply Voltage Parameter, Table 2.................... 5
Changes to Table 5 and Table 6....................................................... 8
Changes to One-Time Programming (OTP) Section................ 15
Changes to Power Supply Considerations Section, Figure 46,
and Figure 46 Caption.................................................................... 17
Changes to Ordering Guide .......................................................... 23
7/08—Rev. E to Rev. F
Changes to Power Supplies Parameter in Table 1 and Table 2 ... 3
Updated Fuse Blow Condition to 400 ms Throughout ............... 5
1/08—Rev. D to Rev. E
Changes to Features.......................................................................... 1
Changes to General Description .................................................... 1
Changes to OTP Supply Voltage and OTP Supply Current in
Table 1 ................................................................................................ 3
Changes to OTP Supply Voltage and OTP Supply Current in
Table 2 ................................................................................................ 5
Added OTP Program Time in Table 3........................................... 6
Changes to Table 4............................................................................ 7
Changes to Table 5 and Table 6....................................................... 8
Inserted Figure 30........................................................................... 13
Replaced One-Time Programming (OTP) Section ................... 15
Replaced Power Supply Considerations Section ........................ 17
Deleted Device Programming Software Section ........................ 20
Replaced I2C-Compatible, 2-Wire Serial Bus Section ............... 21
Changes to Ordering Guide .......................................................... 23
6/06—Rev. C to Rev. D
Changes to Features ..........................................................................1
Changes to One-Time Programming (OTP) Section................ 15
Changes to Figure 44 and Figure 45............................................. 17
Changes to Power Supply Considerations Section .................... 18
Changes to Figure 46 and Figure 47............................................. 18
Changes to Device Programming Software Section.................. 19
Updated Outline Dimensions....................................................... 24
6/05—Rev. B to Rev. C
Added Footnote 8, Footnote 9, and Footnote 10 to Table 1 ........3
Added Footnote 8 to Table 2............................................................5
Changes to Table 5 and Table 6 .......................................................9
Changes to Power Supply Considerations Section .................... 17
Changes to I2C-Compatible 2-Wire Serial Bus Section ............ 23
Added Level Shifting for Different Voltage Operation Section ......24
Updated Outline Dimensions....................................................... 25
Changes to Ordering Guide .......................................................... 25
10/04—Rev. A to Rev. B
Updated Format .................................................................Universal
Changes to Specifications.................................................................3
Changes to One-Time Programming (OTP) Section................ 13
Changes to Power Supply Considerations Section .................... 15
Changes to Figure 44 and Figure 45............................................. 15
Changes to Figure 46 and Figure 47............................................. 16
11/03—Rev. 0 to Rev. A
Changes to Electrical Characteristics—2.5 kΩ..............................3
11/03—Revision 0: Initial Version


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