DAC8420 Analog Devices, DAC8420 Datasheet - Page 2

• Manufacturer Part Number: DAC8420
• Description: Quad 12-Bit Serial Voltage Output DAC
• Manufacturer: Analog Devices

Specifications of DAC8420

• Resolution (bits): 12bit
• Dac Update Rate: 125kSPS
• Dac Settling Time: 8µs
• Max Pos Supply (v): +15.75V
• Single-supply: Yes
• Dac Type: Voltage Out
• Dac Input Format: Ser

DAC8420
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 6
Pin Configurations and Function Descriptions ........................... 8
Typical Performance Characteristics ........................................... 10
Theory of Operation ...................................................................... 14
REVISION HISTORY
5/07—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
9/03—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
Electrical Characteristics............................................................. 3
Thermal Resistance ...................................................................... 6
ESD Caution.................................................................................. 6
Introduction ................................................................................ 14
Digital Interface Operation ....................................................... 14
Rev. B | Page 2 of 24
Applications..................................................................................... 17
Outline Dimensions ....................................................................... 22
Correct Operation of CS and CLK........................................... 14
Using CLR and CLSEL .............................................................. 14
Programming the Analog Outputs .......................................... 14
VREFHI Input Requirements................................................... 16
Power-Up Sequence ................................................................... 16
Power Supply Bypassing and Grounding................................ 17
Analog Outputs .......................................................................... 17
Reference Configuration ........................................................... 18
Isolated Digital Interface ........................................................... 19
Dual Window Comparator ....................................................... 20
MC68HC11 Microcontroller Interfacing................................ 20
DAC8420 to M68HC11 Interface Assembly Program .......... 21
Ordering Guide .......................................................................... 23