Datasheet

AD7623
Rev. 0 | Page 2 of 28
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Specifications..................................................................................... 3
Timing Specifications....................................................................... 5
Serial Clock Timing Specifications............................................ 6
Absolute Maximum Ratings............................................................ 7
ESD Caution.................................................................................. 7
Pin Configuration and Function Descriptions............................. 8
Terminology .................................................................................... 11
Typical Performance Characteristics ........................................... 12
Theory of Operation ...................................................................... 15
Circuit Information.................................................................... 15
Converter Operation.................................................................. 15
Transfer Functions...................................................................... 16
Typical Connection Diagram ................................................... 17
Analog Inputs ............................................................................. 17
Driver Amplifier Choice ........................................................... 17
Voltage Reference Input ............................................................ 18
Power Supply............................................................................... 19
Power Dissipation vs. Throughput .......................................... 20
Conversion Control ................................................................... 20
Interfaces.......................................................................................... 21
Digital Interface.......................................................................... 21
Parallel Interface......................................................................... 21
Serial Interface............................................................................ 22
Master Serial Interface............................................................... 22
Slave Serial Interface .................................................................. 24
Microprocessor Interfacing....................................................... 26
Application...................................................................................... 27
Layout .......................................................................................... 27
Evaluating the AD7623 Performance...................................... 27
Outline Dimensions....................................................................... 28
Ordering Guide .......................................................................... 28
REVISION HISTORY
7/05—Revision 0: Initial Version