Data SheetAD549ABSOLUTE MAXIMUM RATINGS Table 2. Stresses at or above those listed under Absolute Maximum Parameter Rating Ratings may cause permanent damage to the product. This is a Supply Voltage ±18 V stress rating only; functional operation of the product at these Internal Power Dissipation 500 mW or any other conditions above those indicated in the operational Input Voltage1 ±18 V section of this specification is not implied. Operation beyond Output Short-Circuit Duration Indefinite the maximum operating conditions for extended periods may Differential Input Voltage +V affect product reliability. S and −VS Storage Temperature Range −65°C to +125°C Operating Temperature Range ESD CAUTION AD549J, AD549K, AD549L 0°C to +70°C AD549S −55°C to +125°C Lead Temperature (Soldering, 60 sec) 300°C 1 For supply voltages less than ±18 V, the absolute maximum input voltage is equal to the supply voltage. Rev. K | Page 5 of 18 Document Outline FEATURES APPLICATIONS CONNECTION DIAGRAM GENERAL DESCRIPTION PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS FUNCTIONAL DESCRIPTION MINIMIZING INPUT CURRENT CIRCUIT BOARD NOTES OFFSET NULLING AC RESPONSE WITH HIGH VALUE SOURCE AND FEEDBACK RESISTANCE COMMON-MODE INPUT VOLTAGE OVERLOAD DIFFERENTIAL INPUT VOLTAGE OVERLOAD INPUT PROTECTION SAMPLE-AND-DIFFERENCE CIRCUIT TO MEASURE ELECTROMETER LEAKAGE CURRENTS PHOTODIODE INTERFACE Photodiode Preamp Noise LOG RATIO AMPLIFIER TEMPERATURE COMPENSATED pH PROBE AMPLIFIER OUTLINE DIMENSIONS ORDERING GUIDE
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