DAC8420

Data Sheet

Rev. C | Page 2 of 23

TABLE OF CONTENTS

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

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

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

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

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

Specifications..................................................................................... 3

Electrical Characteristics............................................................. 3

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

Thermal Resistance ...................................................................... 6

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

Pin Configurations and Function Descriptions ........................... 8

Typical Performance Characteristics ............................................. 9

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

Introduction ................................................................................ 13

Digital Interface Operation....................................................... 13

Correct Operation of CS and CLK........................................... 13

Using CLR and CLSEL............................................................... 13

Programming the Analog Outputs .......................................... 13

VREFHI Input Requirements................................................... 15

Power-Up Sequence ................................................................... 15

Applications..................................................................................... 16

Power Supply Bypassing and Grounding................................ 16

Analog Outputs .......................................................................... 16

Reference Configuration ........................................................... 17

Isolated Digital Interface ........................................................... 18

Dual Window Comparator ....................................................... 19

MC68HC11 Microcontroller Interfacing................................ 19

DAC8420 to M68HC11 Interface Assembly Program .......... 20

Outline Dimensions....................................................................... 21

Ordering Guide .......................................................................... 22

REVISION HISTORY

9/2016—Rev. B to Rev. C

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

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

5/2007—Rev. A to Rev. B

Updated Format..................................................................Universal

Changes to Endnote 3 ...................................................................... 4

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

Changes to Table 4............................................................................ 2

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

Changes to Ordering Guide .......................................................... 23

9/2003—Rev. 0 to Rev. A

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

Deleted Wafer Test Limits table...................................................... 4

Deleted Dice Characteristics........................................................... 4

Updated Ordering Guide................................................................. 4

Added Power-Up Sequence section ............................................. 12

Updated Outline Dimensions....................................................... 17