Datasheet AD6644 (Analog Devices) - 8

AD6644 ABSOLUTE MAXIMUM RATINGS Table 6. EXPLANATION OF TEST LEVELS Parameter Rating Test Level
Electrical I. 100% production tested. AVCC Voltage 0 V to 7 V II. 100% production tested at 25°C, and guaranteed by design DVCC Voltage 0 V to 7 V and characterization at temperature extremes. Analog Input Voltage 0 V to AVCC III. Sample tested only. Analog Input Current 25 mA IV. Parameter is guaranteed by design and characterization Digital Input Voltage 0 V to AVCC testing. Digital Output Current 4 mA V. Parameter is a typical value only. Environmental
THERMAL RESISTANCE
Operating Temperature Range (Ambient) −25°C to +85°C Storage Temperature Range (Ambient) 150°C The following measurements were taken on a 6-layer board in Lead Temperature (Soldering, 10 sec) 300°C still air with a solid ground plane. Maximum Junction Temperature −65°C to +150°C
Table 7. Thermal Resistance
Stresses above those listed under Absolute Maximum Ratings
Package Type θJA θJC Unit
may cause permanent damage to the device. This is a stress 52-lead LQFP 33 11 °C/W rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute
ESD CAUTION
maximum rating conditions for extended periods may affect device reliability. Rev. D | Page 7 of 24 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PRODUCT HIGHLIGHTS FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS DC SPECIFICATIONS DIGITAL SPECIFICATIONS SWITCHING SPECIFICATIONS AC SPECIFICATIONS TIMING DIAGRAM ABSOLUTE MAXIMUM RATINGS EXPLANATION OF TEST LEVELS Test Level THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS EQUIVALENT CIRCUITS TERMINOLOGY THEORY OF OPERATION APPLYING THE AD6644 Encoding the AD6644 Analog Input Power Supplies Digital Outputs Layout Information Jitter Considerations EVALUATION BOARD OUTLINE DIMENSIONS ORDERING GUIDE