AD7825BR View Datasheet(PDF) - Analog Devices
Part Name
Description
MFG CO.
AD7825BR Datasheet PDF : 28 Pages
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AD7822/AD7825/AD7829
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Product Highlights ....................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Characteristics ................................................................ 5
Timing Diagram ........................................................................... 5
Absolute Maximum Ratings............................................................ 6
ESD Caution.................................................................................. 6
Pin Configurations and Function Descriptions ........................... 7
Terminology ...................................................................................... 8
Circuit Information ........................................................................ 10
Circuit Description..................................................................... 10
Typical Connection Diagram ................................................... 10
ADC Transfer Function............................................................. 11
Analog Input ............................................................................... 11
Power-Up Times......................................................................... 14
Power vs. Throughput................................................................ 15
Operating Modes........................................................................ 15
Parallel Interface......................................................................... 17
Microprocessor Interfacing........................................................... 18
AD7822/AD7825/AD7829 to 8051 ......................................... 18
AD7822/AD7825/AD7829 to PIC16C6x/PIC16C7x................ 18
AD7822/AD7825/AD7829 to ADSP-21xx ............................. 18
Interfacing Multiplexer Address Inputs .................................. 18
AD7822 Standalone Operation ................................................ 19
Outline Dimensions ....................................................................... 20
Ordering Guide .......................................................................... 25
REVISION HISTORY
8/06—Rev. B to Rev. C
Changes to General Description .................................................... 1
Changes to Table 1............................................................................ 3
Changes to Typical Connection Diagram Section ..................... 10
Updated Outline Dimensions ....................................................... 20
Changes to Ordering Guide .......................................................... 25
10/01—Rev. A to Rev. B
Changes to Power Requirements.................................................... 3
Changes to Pin Function Description ........................................... 5
Changes to Circuit Description ...................................................... 7
Changes to Typical Connection Diagram Section........................7
Changes to Analog Input Section....................................................8
Changes to Analog Input Selection Section...................................9
Changes to Power-Up Times Section .......................................... 10
Changes to Power vs. Throughput Section ................................. 11
Added AD7822 Stand-Alone Operation section ....................... 15
12/99—Rev. 0 to Rev. A
Rev. C | Page 2 of 28
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