AD5273BRJZ1-R2 Ver la hoja de datos (PDF) - Analog Devices

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AD5273BRJZ1-R2

64-Position OTP Digital Potentiometer

Analog Devices 

AD5273

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

General Description ......................................................................... 1

Functional Block Diagram .............................................................. 1

Revision History ............................................................................... 2

Specifications..................................................................................... 4

Absolute Maximum Ratings............................................................ 6

ESD Caution.................................................................................. 6

Pin Configuration and Function Descriptions............................. 7

Typical Performance Characteristics ............................................. 8

Theory of Operation ...................................................................... 13

One-Time Programming........................................................... 13

Variable Resistance and Voltage for Rheostat Mode ............. 14

Variable Resistance and Voltage for Potentiometer Mode.... 14

ESD Protection ........................................................................... 15

Terminal Voltage Operating Range.......................................... 15

REVISION HISTORY

6/15—Rev. I to Rev. J

Changes to Table 3............................................................................ 7

Changes to One-Time Programming Section ............................ 13

Changes to Power Supply Considerations Section..................... 15

6/15—Rev. H to Rev. I

Changes to Applications Section and General Description

Section................................................................................................ 1

Changes to OTP Supply Current Parameter, Table 1................... 4

Changes to Controlling the AD5273 Section ............................. 16

Deleted Software Programming Section, Write Section, and

Read Section .................................................................................... 16

Deleted Figure 39, Figure 40, and Figure 41; Renumbered

Sequentially ..................................................................................... 16

Changed ADR370 to ADR3420.................................................... 19

Deleted Evaluation Board Section................................................ 20

Deleted Figure 53 to Figure 55...................................................... 21

Changes to Ordering Guide .......................................................... 21

10/10—Rev. G to Rev. H

Changes to OTP Power Supply Parameter in Table 1.................. 4

Changes to VDD Pin Description in Table 3................................... 7

Changes to One-Time Programming Section ............................ 13

Changes to Power Supply Considerations Section, Figure 38 .. 15

Updated Outline Dimensions ....................................................... 22

Changes to Ordering Guide .......................................................... 22

Data Sheet

Power-Up/Power-Down Sequences......................................... 15

Power Supply Considerations ................................................... 15

Controlling the AD5273 ................................................................ 16

I2C Controller Programming.................................................... 16

Controlling Two Devices on One Bus ..................................... 17

Applications Information .............................................................. 18

DAC.............................................................................................. 18

Programmable Voltage Source with Boosted Output ........... 18

Programmable Current Source ................................................ 18

Gain Control Compensation .................................................... 18

Programmable Low-Pass Filter ................................................ 19

Level Shift for Different Voltages Operation .......................... 19

RDAC Circuit Simulation Model ............................................. 19

Outline Dimensions ....................................................................... 20

Ordering Guide .......................................................................... 20

8/08—Rev. F to Rev. G

Changes to Power Supplies Parameter in Table 1 .........................3

Updated Fuse Blow Condition to 400 ms Throughout ................5

1/08—Rev. E to Rev. F

Changes to Table 1.............................................................................4

Changes to Table 2.............................................................................6

Changes to Table 3.............................................................................7

Inserted Figure 28........................................................................... 12

Changes to One-Time Programming Section ............................ 13

Changes to Power Supply Considerations Section .................... 15

Deleted Figure 35............................................................................ 15

Changes to Figure 36...................................................................... 15

Updated Outline Dimensions ....................................................... 22

Changes to Ordering Guide .......................................................... 22

1/05—Rev. D to Rev. E

Changes to Features ..........................................................................1

Changes to Specifications.................................................................3

Changes to Table 3.............................................................................6

Changes to Power Supply Considerations Section .................... 15

Changes to Figure 35 and Figure 37 ............................................ 15

Changes to DAC Section ............................................................... 19

Changes to Level Shift for Different Voltages

Operation Section........................................................................... 20

Deleted the Resistance Scaling Section ....................................... 20

Deleted the Resolution Enhancement Section ........................... 20

Rev. J | Page 2 of 20

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