link to page 1 link to page 1 link to page 1 link to page 1 link to page 2 link to page 3 link to page 3 link to page 3 link to page 5 link to page 6 link to page 6 link to page 7 link to page 8 link to page 9 link to page 10 link to page 10 link to page 10 link to page 11 link to page 13 link to page 15 link to page 15 link to page 15 link to page 15 link to page 16 link to page 16 link to page 16 link to page 16 link to page 18 link to page 19 link to page 20 link to page 23 link to page 26 link to page 27 link to page 27 link to page 27 link to page 28 link to page 30 link to page 32 link to page 33 link to page 33 link to page 33 AD1937TABLE OF CONTENTS Features .. 1 Analog-to-Digital Converters (ADCs) .. 15 Applications ... 1 Digital-to-Analog Converters (DACs) .. 15 General Description ... 1 Clock Signals ... 15 Functional Block Diagram .. 1 Reset and Power-Down ... 16 Revision History ... 2 I2C Control Port .. 16 Specifications ... 3 Power Supply and Voltage Reference ... 18 Test Conditions ... 3 Serial Data Ports—Data Format ... 19 Analog Performance Specifications ... 3 Time-Division Multiplexed (TDM) Modes .. 20 Crystal Oscillator Specifications... 5 Daisy-Chain Mode ... 23 Digital Specifications ... 6 Additional Modes ... 26 Power Supply Specifications.. 6 Control Registers .. 27 Digital Filters ... 7 Definitions ... 27 Timing Specifications .. 8 PLL and Clock Control Registers ... 27 Timing Diagrams .. 9 DAC Control Registers .. 28 Absolute Maximum Ratings .. 10 ADC Control Registers .. 30 Thermal Resistance .. 10 Applications Circuits .. 32 ESD Caution .. 10 Outline Dimensions ... 33 Pin Configuration and Function Descriptions ... 11 Ordering Guide .. 33 Typical Performance Characteristics ... 13 Automotive Products ... 33 Theory of Operation .. 15 REVISION HISTORY6/10—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 Rev. B | Page 2 of 36 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TEST CONDITIONS ANALOG PERFORMANCE SPECIFICATIONS CRYSTAL OSCILLATOR SPECIFICATIONS DIGITAL SPECIFICATIONS POWER SUPPLY SPECIFICATIONS DIGITAL FILTERS TIMING SPECIFICATIONS TIMING DIAGRAMS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION ANALOG-TO-DIGITAL CONVERTERS (ADCs) DIGITAL-TO-ANALOG CONVERTERS (DACs) CLOCK SIGNALS RESET AND POWER-DOWN I2C CONTROL PORT POWER SUPPLY AND VOLTAGE REFERENCE SERIAL DATA PORTS—DATA FORMAT TIME-DIVISION MULTIPLEXED (TDM) MODES DAISY-CHAIN MODE ADDITIONAL MODES CONTROL REGISTERS DEFINITIONS PLL AND CLOCK CONTROL REGISTERS DAC CONTROL REGISTERS ADC CONTROL REGISTERS APPLICATIONS CIRCUITS OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS