link to page 16 AD7902Data SheetABSOLUTE MAXIMUM RATINGS Table 5. Stresses at or above those listed under Absolute Maximum ParameterRating Ratings may cause permanent damage to the product. This is a Analog Inputs stress rating only; functional operation of the product at these INx+, INx− to GND1 −0.3 V to V + 0.3 V or ±10 mA or any other conditions above those indicated in the operational REF Supply Voltage section of this specification is not implied. Operation beyond REFx, VIOx to GND −0.3 V to +6.0 V the maximum operating conditions for extended periods may VDDx to GND −0.3 V to +3.0 V affect product reliability. VDDx to VIOx +3 V to −6 V ESD CAUTION Digital Inputs to GND −0.3 V to V + 0.3 V IO Digital Outputs to GND −0.3 V to V + 0.3 V IO Storage Temperature Range −65°C to +150°C Junction Temperature 150°C Lead Temperatures Vapor Phase (60 sec) 255°C Infrared (15 sec) 260°C 1 See the Analog Inputs section for an explanation of INx+ and INx−. Rev. B | Page 6 of 28 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION Transfer Functions TYPICAL CONNECTION DIAGRAM ANALOG INPUTS DRIVER AMPLIFIER CHOICE VOLTAGE REFERENCE INPUT POWER SUPPLY DIGITAL INTERFACE CS MODE /CS Mode, 3-Wire Interface Without Busy Indicator /CS Mode, 3-Wire Interface with Busy Indicator /CS Mode, 4-Wire Interface Without Busy Indicator /CS Mode, 4-Wire Interface with Busy Indicator CHAIN MODE Chain Mode Without Busy Indicator Chain Mode with Busy Indicator APPLICATIONS INFORMATION SIMULTANEOUS SAMPLING FUNCTIONAL SAFTEY CONSIDERATIONS LAYOUT EVALUATING PERFORMANCE OF THE AD7902 OUTLINE DIMENSIONS ORDERING GUIDE NOTES