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AD5235 View Datasheet(PDF) - Analog Devices

Part NameDescriptionManufacturer
AD5235 Nonvolatile Memory, Dual 1024-Position Digital Potentiometer ADI
Analog Devices ADI
AD5235 Datasheet PDF : 32 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
AD5235
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 3
Specifications..................................................................................... 4
Electrical Characteristics—25 kΩ, 250 kΩ Versions ............... 4
Interface Timing and EEMEM Reliability Characteristics—
25 kΩ, 250 kΩ Versions ............................................................... 6
Absolute Maximum Ratings............................................................ 8
ESD Caution.................................................................................. 8
Pin Configuration and Function Descriptions............................. 9
Typical Performance Characteristics ........................................... 10
Test Circuits................................................................................. 14
Theory of Operation ...................................................................... 16
Scratchpad and EEMEM Programming.................................. 16
Basic Operation .......................................................................... 16
EEMEM Protection.................................................................... 17
Digital Input and Output Configuration................................. 17
Serial Data Interface................................................................... 17
Daisy-Chain Operation ............................................................. 18
Terminal Voltage Operating Range.......................................... 18
Advanced Control Modes ......................................................... 20
RDAC Structure.......................................................................... 21
Programming the Variable Resistor......................................... 22
Programming the Potentiometer Divider............................... 22
Programming Examples ............................................................ 23
EVAL-AD5235SDZ Evaluation Kit.......................................... 23
Applications Information .............................................................. 24
Bipolar Operation from Dual Supplies.................................... 24
Gain Control Compensation .................................................... 24
High Voltage Operation ............................................................ 24
DAC.............................................................................................. 24
Bipolar Programmable Gain Amplifier................................... 25
10-Bit Bipolar DAC.................................................................... 25
Programmable Voltage Source with Boosted Output ........... 25
Programmable Current Source ................................................ 26
Programmable Bidirectional Current Source......................... 26
Programmable Low-Pass Filter ................................................ 27
Programmable Oscillator .......................................................... 27
Optical Transmitter Calibration with ADN2841 ................... 28
Resistance Scaling ...................................................................... 28
Resistance Tolerance, Drift, and Temperature Coefficient
Mismatch Considerations ......................................................... 29
RDAC Circuit Simulation Model............................................. 29
Outline Dimensions ....................................................................... 30
Ordering Guide .......................................................................... 30
Rev. E | Page 2 of 32
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