Data Sheet

AD7767

TABLE OF CONTENTS

analog.com

Rev. D | 2 of 23

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

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

Related Devices.................................................... 1

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

General Description...............................................3

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

Timing Specifications......................................... 6

Timing Diagrams................................................ 7

Absolute Maximum Ratings...................................8

ESD Caution.......................................................8

Pin Configuration and Function Descriptions........ 9

Typical Performance Characteristics................... 10

Terminology......................................................... 14

Theory of Operation.............................................15

AD7767/AD7767-1/AD7767-2 Transfer

Function..........................................................15

Converter Operation.........................................15

Analog Input Structure......................................16

Supply and Reference Voltages.......................16

AD7767 Interface.................................................17

Initial Power-Up................................................ 17

Reading Data................................................... 17

Power-Down, Reset, and Synchronization.......17

Daisy Chaining.................................................... 18

Reading Data in Daisy-Chain Mode................. 18

Choosing the SCLK Frequency........................18

Daisy-Chain Mode Configuration and

Timing Diagrams............................................ 19

Driving the AD7767............................................. 20

Differential Signal Source.................................20

Single-Ended Signal Source............................ 20

Antialiasing.......................................................21

Power Dissipation.............................................21

VREF+ Input Signal............................................22

Multiplexing Analog Input Channels.................22

Outline Dimensions............................................. 23

Ordering Guide.................................................23

Evaluation Boards............................................ 23

REVISION HISTORY

6/2024—Rev. C to Rev. D

Changed Master to Main (Throughout)............................................................................................................1

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

Moved General Description Section................................................................................................................ 3

Change to Specifications Section.................................................................................................................... 4

Changes to Group Delay Parameter and Settling Time (Latency) Parameter, Table 2................................... 4

Changes to tSETTLING Parameter, Table 3........................................................................................................ 6

Changes to Typical Performance Characteristics Section............................................................................. 10

Changes to Table 7........................................................................................................................................17