AD8422Data SheetTYPICAL PERFORMANCE CHARACTERISTICS T = 25°C, VS = ±15, VREF = 0 V, RL = 10 kΩ, unless otherwise noted. 400400350350300300250250S TSHIT 200200HI150150100100505000–90–60–300306090 03 0 –300–200–1000100200300 97- -006 INPUT OFFSET VOLTAGE (µV) 97 111 OUTPUT OFFSET VOLTAGE (µV) 111 Figure 4. Typical Distribution of Input Offset Voltage Figure 7. Typical Distribution of Output Offset Voltage 800400600300S TS THIHI40020020010000–900–600–3000300600900 040 –300–200–1000100200300 7- -007 POSITIVE INPUT BIAS CURRENT (pA) 97 119 INPUT OFFSET CURRENT (pA) 1 111 Figure 5. Typical Distribution of Input Bias Current Figure 8. Typical Distribution of Input Offset Current 500500400400S 300TSHI300T HI20020010010000 05 8 –9–6–30369 0 –40–2002040 -00 97- 7 PSRR G = 1 (µV/V) 19 111 CMRR G = 1 (µV/V) 11 Figure 6. Typical Distribution of PSRR (G = 1) Figure 9. Typical Distribution of CMRR (G = 1) Rev. A | Page 10 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