Data Sheet

LTC2672

TABLE OF CONTENTS

analog.com

Rev. B | 2 of 27

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

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

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

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

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

Timing Characteristics........................................7

Absolute Maximum Ratings...................................9

Thermal Resistance........................................... 9

Electrostatic Discharge (ESD) Ratings...............9

ESD Caution.......................................................9

Pin Configuration and Function Descriptions...... 10

Typical Performance Characteristics................... 12

Terminology......................................................... 15

Theory of Operation.............................................16

Load Termination and Combining Channels.... 16

Power-On Reset...............................................16

Power Supply Sequencing............................... 16

Data Transfer Function.....................................16

Serial Interface................................................. 16

Output Ranges and SoftSpan Operation..........17

Toggle Operations............................................ 19

Daisy-Chain Operation..................................... 21

Echo Readback................................................21

Monitor Multiplexer........................................... 21

Fault Register...................................................23

Fault Indicator Pin (FAULT) ............................. 23

Configuration Command.................................. 24

Power-Down Mode...........................................24

Safe Supply Ranges.........................................24

Current Outputs................................................24

Switch to V− Mode............................................25

Gain Adjustment Using the FSADJ Pin............ 25

Offset Current and Code 0............................... 25

Reference Modes.............................................25

Board Layout....................................................25

Outline Dimensions............................................. 26

Ordering Guide.................................................27

Evaluation Boards............................................ 27

REVISION HISTORY

1/2024—Rev. A to Rev. B

Added 36-Ball WLCSP (Universal).................................................................................................................. 1

Reorganized Layout (Universal)...................................................................................................................... 1

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

Changes to General Description Section.........................................................................................................1

Changes to Figure 1........................................................................................................................................ 1

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

Changes to Thermal Resistance Section and Table 5..................................................................................... 9

Added Electrostatic Discharge (ESD) Ratings Section and Table 6; Renumbered Sequentially.....................9

Change to Figure 5 Caption...........................................................................................................................10

Added Figure 6; Renumbered Sequentially................................................................................................... 10

Changes to Table 7........................................................................................................................................10

Changes to Toggle Operations Section......................................................................................................... 19

Changes to Figure 30.................................................................................................................................... 20

Moved Figure 31 and Table 11.......................................................................................................................21

Changed Fault Indicator Pin (FAULT, Pin 30) Section to Fault Indicator Pin (FAULT) Section..................... 23

Changes to Safe Supply Ranges Section......................................................................................................24

Change to Reference Modes Section............................................................................................................ 25

Changes to Board Layout Section................................................................................................................. 25

Updated Outline Dimensions......................................................................................................................... 26

Changes to Ordering Guide........................................................................................................................... 27

4/2021—Rev. 0 to Rev. A

Added 12-Bit to Product Title........................................................................................................................... 1

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

Changes to General Description Section.........................................................................................................1

Changes to Figure 1........................................................................................................................................ 1