AD5273
TABLE OF CONTENTS
Features .............................................................................................. 1
Power Supply Considerations................................................... 15
Controlling the AD5273................................................................ 16
Software Programming ............................................................. 16
I2C Controller Programming.................................................... 17
Controlling Two Devices on One Bus..................................... 18
Applications Information.............................................................. 19
DAC.............................................................................................. 19
Programmable Voltage Source with Boosted Output ........... 19
Programmable Current Source ................................................ 19
Gain Control Compensation .................................................... 19
Programmable Low-Pass Filter ................................................ 20
Level Shift for Different Voltages Operation.......................... 20
RDAC Circuit Simulation Model............................................. 20
Evaluation Board ............................................................................ 21
Outline Dimensions....................................................................... 22
Ordering Guide .......................................................................... 22
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
Power-Up/Power-Down Sequences......................................... 15
REVISION HISTORY
10/10—Rev. G to Rev. H
1/05—Rev. D to Rev. E
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
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
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
Operation Section........................................................................... 20
Deleted the Resistance Scaling Section ....................................... 20
Deleted the Resolution Enhancement Section ........................... 20
1/08—Rev. E to Rev. F
12/04—Rev. C to Rev. D
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
Updated Format..................................................................Universal
Changes to Specifications.................................................................3
Changes to Theory of Operation Section.................................... 13
Changes to Power Supply Considerations Section.................... 15
Changes to Figure 35, Figure 36, and Figure 37......................... 15
11/03—Rev. B to Rev. C
Changes to SDA Bit Definitions and Descriptions.................... 10
Changes to One-Time Programming (OTP) Section................ 11
Changes to Table III ....................................................................... 11
Changes to Power Supply Considerations .................................. 13
Changes to Figure 8, Figure 9, and Figure 10 ............................. 13
Rev. H | Page 2 of 24
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