AD8221-EPEnhanced ProductPIN CONFIGURATION AND FUNCTION DESCRIPTIONSAD8221-EP–IN18+VSRG 27VOUTRG 36REF+IN45–VSTOP VIEW -103 (Not to Scale) 13702 Figure 3. Pin Configuration Table 4. Pin Function Descriptions Pin No.MnemonicDescription 1 −IN Negative Input Terminal. 2, 3 RG Gain Setting Terminal. Place resistor across the RG pins to set the gain. G = 1 + (49.4 kΩ/RG). 4 +IN Positive Input Terminal. 5 −VS Negative Power Supply Terminal. 6 REF Reference Voltage Terminal. Drive this terminal with a low impedance voltage source to level-shift the output. 7 VOUT Output Terminal. 8 +VS Positive Power Supply Terminal. Rev. 0 | Page 6 of 14 Document Outline FEATURES ENHANCED PRODUCT FEATURES APPLICATIONS TYPICAL CONNECTION DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL CHARACTERISTICS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS OUTLINE DIMENSIONS ORDERING GUIDE