Datasheet AD7298 (Analog Devices) - 7

AD7298 ABSOLUTE MAXIMUM RATINGS ESD CAUTION Table 3. Parameter Rating
VDD to GND, GND1 −0.3 V to +5 V VDRIVE to GND, GND1 −0.3 V to + 5 V Analog Input Voltage to GND1 −0.3 V to 3 V Digital Input Voltage to GND −0.3 V to V DRIVE + 0.3 V Digital Output Voltage to GND −0.3 V to V DRIVE + 0.3 V VREF to GND1 −0.3 V to +3 V
THERMAL RESISTANCE
GND1 to GND −0.3 V to +0.3 V Input Current to Any Pin Except Supplies ±10 mA
Table 4. Thermal Resistance
Operating Temperature Range −40°C to +125°C
Package Type θJA θJC Unit
Storage Temperature Range −65°C to +150°C 20-Lead LFCSP 52 6.5 °C/W Junction Temperature 150°C Pb-Free Temperature, Soldering Reflow 260(+0)°C ESD 3.5 kV Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress 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 maximum rating conditions for extended periods may affect device reliability. Rev. B | Page 6 of 24 Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION THERMAL RESISTANCE PIN CONFIGURATION AND FUNCTION DESCRIPTION TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY CIRCUIT INFORMATION CONVERTER OPERATION ANALOG INPUT ADC Transfer Function TEMPERATURE SENSOR OPERATION TEMPERATURE SENSOR AVERAGING Temperature Value Format VDRIVE THE INTERNAL OR EXTERNAL REFERENCE CONTROL REGISTER MODES OF OPERATION TRADITIONAL MULTICHANNEL MODE OF OPERATION REPEAT OPERATION POWER-DOWN MODES Normal Mode Partial Power-Down Mode Full Power-Down Mode POWERING UP THE AD7298 RESET SERIAL INTERFACE TEMPERATURE SENSOR READ LAYOUT AND CONFIGURATION POWER SUPPLY BYPASSING AND GROUNDING TEMPERATURE MONITORING OUTLINE DIMENSIONS ORDERING GUIDE