Data SheetAD8422PIN CONFIGURATION AND FUNCTION DESCRIPTIONSAD8422–IN18+VSRG27VOUTRG36REF+IN45–VS 002 TOP VIEW(Not to Scale) 11197- Figure 3. Pin Configuration Table 5. Pin Function Descriptions Pin No. Mnemonic Description 1 −IN Negative Input Terminal. 2, 3 RG Gain Setting Terminals. Place resistor across the RG pins to set the gain. G = 1 + (19.8 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. A | Page 9 of 24 Document Outline FEATURES APPLICATIONS CONNECTION DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS SOIC PACKAGE MSOP PACKAGE ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION ARCHITECTURE GAIN SELECTION RG Power Dissipation REFERENCE TERMINAL INPUT VOLTAGE RANGE LAYOUT Common-Mode Rejection Ratio over Frequency Power Supplies and Grounding Reference Pin INPUT BIAS CURRENT RETURN PATH INPUT VOLTAGES BEYOND THE SUPPLY RAILS Input Voltages Beyond the Maximum Ratings RADIO FREQUENCY INTERFERENCE (RFI) APPLICATIONS INFORMATION PRECISION BRIDGE CONDITIONING PROCESS CONTROL ANALOG INPUT OUTLINE DIMENSIONS ORDERING GUIDE
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