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AD5160 Datasheet PDF - Analog Devices


256-Position SPI-Compatible Digital Potentiometer

Numéro de référence AD5160
Description 256-Position SPI-Compatible Digital Potentiometer
Fabricant Analog Devices 
Logo Analog Devices Logo 
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17 Pages
		
AD5160 Datasheet

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AD5160 Fiche technique
AD5160
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
Pin Configuration............................................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Electrical Characteristics—5 kΩ Version.................................. 3
10 kΩ, 50 kΩ, 100 kΩ Versions .................................................. 4
Timing Characteristics—All Versions ....................................... 5
Absolute Maximum Ratings............................................................ 6
ESD Caution.................................................................................. 6
Pin Configuration and Function Descriptions............................. 7
REVISION HISTORY
11/14—Rev. B to Rev. C
Changes to Ordering Guide .......................................................... 16
5/09—Rev. A to Rev. B
Changes to Ordering Guide .......................................................... 16
1/09—Rev. 0 to Rev. A
Deleted Shutdown Supply Current Parameter and
Endnote 7, Table 1 ............................................................................ 3
Changes to Resistor Noise Voltage Density Parameter,
Table 1 ................................................................................................ 3
Deleted Shutdown Supply Current Parameter and
Endnote 7, Table 2 ............................................................................ 4
Changes to Resistor Noise Voltage Density Parameter,
Table 2 ................................................................................................ 4
Added Endnote to Table 3 ............................................................... 5
Changes to Table 4............................................................................ 6
Changes to the Rheostat Operation Section ............................... 14
Deleted Terminal Voltage Operating Range Section and
Figure 41, Renumbered Figures Sequentially ............................. 13
Changes to Figure 40 and Figure 41............................................. 15
Changes to Ordering Guide .......................................................... 16
5/03—Revision 0: Initial Version
Data Sheet
Typical Performance Characteristics ..............................................8
Test Circuits..................................................................................... 12
SPI Interface .................................................................................... 13
Theory of Operation ...................................................................... 14
Programming the Variable Resistor......................................... 14
Programming the Potentiometer Divider............................... 15
SPI-Compatible 3-Wire Serial Bus........................................... 15
ESD Protection ........................................................................... 15
Power-Up Sequence ................................................................... 15
Layout and Power Supply Bypassing ....................................... 15
Outline Dimensions ....................................................................... 16
Ordering Guide .......................................................................... 16
Rev. C | Page 2 of 16

3 Page

AD5160 pdf
Data Sheet
AD5160
TIMING CHARACTERISTICS—ALL VERSIONS
VDD = +5V ± 10%, or +3V ± 10%; VA = VDD; VB = 0 V; –40°C < TA < +125°C; unless otherwise noted.
Table 3.
Parameter
SPI INTERFACE TIMING CHARACTERISTICS1, 2
Clock Frequency
Input Clock Pulse Width
Data Setup Time
Data Hold Time
CS Setup Time
CS High Pulse Width
CLK Fall to CS Fall Hold Time
CLK Fall to CS Rise Hold Time
Symbol
fCLK
tCH, tCL
tDS
tDH
tCSS
tCSW
tCSH0
tCSH1
Conditions
Specifications apply to all parts
Clock level high or low
Min
20
5
5
15
40
0
0
Typ1 Max
25
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
1 See the timing diagram, Figure 38, for location of measured values. All input control voltages are specified with tR = tF = 2 ns (10% to 90% of 3 V) and timed from a
voltage level of 1.5 V.
2 Guaranteed by design and not subject to production test.
Rev. C | Page 5 of 16

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