Datasheet

AD1937
Rev. B | Page 2 of 36
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3 
Test Conditions ............................................................................. 3
Analog Performance Specifications ........................................... 3
Crystal Oscillator Specifications................................................. 5
Digital Specifications ................................................................... 6
Power Supply Specifications........................................................ 6
Digital Filters ................................................................................. 7
Timing Specifications .................................................................. 8
Timing Diagrams .......................................................................... 9
Absolute Maximum Ratings .......................................................... 10
Thermal Resistance .................................................................... 10
ESD Caution ................................................................................ 10
Pin Configuration and Function Descriptions ........................... 11
Typical Performance Characteristics ........................................... 13
Theory of Operation ...................................................................... 15
Analog-to-Digital Converters (ADCs) .................................... 15
Digital-to-Analog Converters (DACs) .................................... 15
Clock Signals ............................................................................... 15
Reset and Power-Down ............................................................. 16
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C Control Port .......................................................................... 16
Power Supply and Voltage Reference ....................................... 18
Serial Data Ports—Data Format ............................................... 19
Time-Division Multiplexed (TDM) Modes ............................ 20
Daisy-Chain Mode ..................................................................... 23
Additional Modes ....................................................................... 26
Control Registers ............................................................................ 27
Definitions ................................................................................... 27
PLL and Clock Control Registers ............................................. 27
DAC Control Registers .............................................................. 28
ADC Control Registers .............................................................. 30
Applications Circuits ...................................................................... 32
Outline Dimensions ....................................................................... 33
Ordering Guide .......................................................................... 33
Automotive Products ................................................................. 33
REVISION HISTORY
6/10—Rev. A to Rev. B
Changes to Table 3 Introductory Text and to Table 3 .................. 4
Changes to Table 5 Introductory Text ........................................... 6
Changes to Table 8 Introductory Text ........................................... 8
3/10—Rev. 0 to Rev. A
Changes to Ordering Guide .......................................................... 33
9/08—Revision 0: Initial Version