Data SheetAD8244PIN CONFIGURATION AND FUNCTION DESCRIPTIONSIN A 110 IN DOUT A 29OUT DAD8244+VS 3TOP VIEW8–VSOUT B(Not to Scale)47OUT C 003 IN B 56IN C 1689- 1 Figure 3. Pin Configuration Table 6. Pin Function Description Pin Number MnemonicDescription 1 IN A Channel A Input 2 OUT A Channel A Output 3 +VS Positive Supply Voltage 4 OUT B Channel B Output 5 IN B Channel B Input 6 IN C Channel C Input 7 OUT C Channel C Output 8 −VS Negative Supply Voltage 9 OUT D Channel D Output 10 IN D Channel D Input Rev. A | Page 7 of 20 Document Outline FEATURES APPLICATIONS PIN CONFIGURATION GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION OVERVIEW GUARDING INPUT PROTECTION LAYOUT CONSIDERATIONS DIFFERENTIAL SIGNAL CHAINS LOW OUTPUT IMPEDANCE vs. FREQUENCY APPLICATIONS INFORMATION ELECTROCARDIOGRAM (ECG) FILTERING Sallen-Key Low-Pass Filter Sallen-Key High-Pass Filter Twin-T Notch Filter PHOTODIODE AMPLIFIER LOW NOISE, JFET INPUT BUFFER OUTLINE DIMENSIONS ORDERING GUIDE