Data SheetAD9237ABSOLUTE MAXIMUM RATINGSTable 5. Stresses above those listed under Absolute Maximum Ratings With may cause permanent damage to the device. This is a stress Pin NameRespect toMinMaxUnit rating only; functional operation of the device at these or any ELECTRICAL other conditions above those indicated in the operational AVDD AGND –0.3 +3.9 V section of this specification is not implied. Exposure to absolute DRVDD DGND –0.3 +3.9 V maximum rating conditions for extended periods may affect AGND DGND –0.3 +0.3 V device reliability. AVDD DRVDD –3.9 +3.9 V Digital DGND –0.3 DRVDD + 0.3 V Absolute maximum ratings are limiting values to be applied Outputs, OE individually and beyond which the serviceability of the circuit CLK, MODE, AGND −0.3 AVDD + 0.3 V may be impaired. Functional operability is not necessarily MODE2 implied. Exposure to absolute maximum rating conditions for VIN+, VIN– AGND –0.3 AVDD + 0.3 V an extended period may affect device reliability. VREF AGND –0.3 AVDD + 0.3 V SENSE AGND –0.3 AVDD + 0.3 V ESD CAUTION REFB, REFT AGND –0.3 AVDD + 0.3 V PDWN AGND –0.3 AVDD + 0.3 V ENVIRONMENTAL1 Operating Temperature –40 +85 °C Junction Temperature 150 °C Lead Temperature (10 sec) 300 °C Storage Temperature –65 +150 °C 1 Typical thermal impedances (32-lead LFCSP), θJA = 32.5°C/W, θJC = 32.71°C/W. These measurements were taken on a 4-layer board in still air, in accordance with EIA/JESD51-1. Rev. C | Page 7 of 24 Document Outline Features Applications Functional Block Diagram General Description Product Highlights Table of Contents Revision History Specifications DC Specifications Digital Specifications AC Specifications Switching Specifications Timing Diagram Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Terminology Equivalent Circuits Typical Performance Characteristics Applying the AD9237 Theory of Operation Analog Input and Reference Overview Differential Input Configurations Single-Ended Input Configuration Voltage Reference Internal Reference Connection External Reference Operation Clock Input Considerations Power Dissipation, Power Scaling, and Standby Mode Digital Outputs Operational Mode Selection Out of Range (OTR) Digital Output Enable Function (OE) Timing Outline Dimensions Ordering Guide