Datasheet

AD7357
Rev. B | Page 2 of 20
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description......................................................................... 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Specifications .................................................................. 5
Absolute Maximum Ratings............................................................ 6
ESD Caution.................................................................................. 6
Pin Configuration and Function Descriptions............................. 7
Typical Performance Characteristics ............................................. 8
Terminology .................................................................................... 10
Theory of Operation ...................................................................... 12
Circuit Information.................................................................... 12
Converter Operation.................................................................. 12
Analog Input Structure.............................................................. 12
Analog Inputs ............................................................................. 13
Driving Differential Inputs ....................................................... 13
Voltage Reference ....................................................................... 14
ADC Transfer Function............................................................. 14
Modes of Operation ....................................................................... 15
Normal Mode.............................................................................. 15
Partial Power-Down Mode ....................................................... 15
Full Power-Down Mode ............................................................ 16
Power-Up Times......................................................................... 17
Power vs. Throughput Rate....................................................... 17
Serial Interface ................................................................................ 18
Application Hints ........................................................................... 19
Grounding and Layout .............................................................. 19
Evaluating the AD7357 Performance...................................... 19
Outline Dimensions ....................................................................... 20
Ordering Guide .......................................................................... 20
Automotive Products................................................................. 20
REVISION HISTORY
8/11—Rev. A to Rev. B
Changes to Midscale Error Match Parameter, Table 2 ................ 3
Changes to Figure 21 and Figure 22............................................. 14
Added Voltage Reference Section ........................................................14
2/11—Rev. 0 to Rev. A
Changes to Features and Applications Sections ........................... 1
Changes to Table 2............................................................................ 3
Added AD7357WY Temperature Range to Endnote 1 in Table 3...5
Changes to SDATA
B
, SDATA
A
Pin Description............................ 7
Changes to Figure 20 and Figure 22............................................. 14
Changes to Figure 31...................................................................... 18
Changes to Ordering Guide .......................................................... 20
Added Automotive Products Section .......................................... 20
4/09—Revision 0: Initial Version