link to page 15 link to page 8 link to page 8 Data SheetAD7942ABSOLUTE MAXIMUM RATINGS Table 5.Parameter Rating Stresses above those listed under Absolute Maximum Ratings Analog Inputs may cause permanent damage to the device. This is a stress IN+1, IN−1 GND − 0.3 V to VDD + 0.3 V rating only; functional operation of the device at these or any or ±130 mA other conditions above those indicated in the operational REF GND − 0.3 V to VDD + 0.3 V section of this specification is not implied. Exposure to absolute Supply Voltages maximum rating conditions for extended periods may affect VDD and VIO to GND −0.3 V to +7 V device reliability. VDD to VIO ±7 V Digital Inputs to GND −0.3 V to VIO + 0.3 V Digital Outputs to GND −0.3 V to VIO + 0.3 V ESD CAUTION Storage Temperature Range −65°C to +150°C Junction Temperature 150°C θJA Thermal Impedance 10-Lead MSOP 200°C/W 10-Lead LFCSP_WD 48.7°C/W θJC Thermal Impedance 10-Lead MSOP 44°C/W 10-Lead LFCSP_WD 2.96°C/W Lead Temperature Vapor Phase (60 sec) 215°C Infrared (15 sec) 220°C 1 See the Analog Input section. Rev. C | Page 7 of 24 Document Outline Features Applications Application Diagram General Description Table of Contents Revision History Specifications Timing Specifications Timing Diagrams 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 Input Driver Amplifier Choice Voltage Reference Input Power Supply Supplying the ADC from the Reference Digital Interface /CS Mode 3-Wire Without Busy Indicator /CS Mode 3-Wire with Busy Indicator /CS Mode 4-Wire Without Busy Indicator /CS Mode 4-Wire with Busy Indicator Chain Mode Without Busy Indicator Chain Mode with Busy Indicator Application Hints Layout Evaluating the Performance of AD7942 Outline Dimensions Ordering Guide