Datasheet AD8422 (Analog Devices) - 6

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AD8422 Data Sheet Test Conditions/ AD8422ARMZ AD8422BRMZ Parameter Comments Min Typ Max Min Typ Max Unit
Offset RTI vs. Supply (PSR) VS = ±2.3 V to ±18 V G = 1 90 110 100 120 dB G = 10 110 130 120 140 dB G = 100 124 150 140 160 dB G = 1000 130 150 140 160 dB INPUT CURRENT Input Bias Current VS = ±2.3 V to ±15 V 0.5 1 0.2 0.5 nA Over Temperature T = −40°C to +85°C 2 1 nA Average Temperature 4 4 pA/°C Coefficient Input Offset Current VS = ±2.3 V to ±15 V 0.2 0.3 0.1 0.15 nA Over Temperature T = −40°C to +85°C 0.8 0.3 nA Average Temperature 1 1 pA/°C Coefficient REFERENCE INPUT RIN 20 20 kΩ IIN VIN+, VIN−, VREF = 0 V 35 50 35 50 µA Voltage Range −VS +VS −VS +VS V Gain to Output 1 1 V/V DYNAMIC RESPONSE Small Signal −3 dB Bandwidth G = 1 2200 2200 kHz G = 10 850 850 kHz G = 100 120 120 kHz G = 1000 12 12 kHz Settling Time 0.01% 10 V step G = 1 13 13 µs G = 10 13 13 µs G = 100 12 12 µs G = 1000 80 80 µs Settling Time 0.001% 10 V step G = 1 15 15 µs G = 10 15 15 µs G = 100 15 15 µs G = 1000 160 160 µs Slew Rate G = 1 to 100 0.8 0.8 V/µs GAIN3 G = 1 + (19.8 kΩ/RG) Gain Range 1 1000 1 1000 V/V Gain Error VOUT ± 10 V G = 1 0.03 0.01 % G = 10 0.2 0.04 % G = 100 0.2 0.04 % G = 1000 0.2 0.04 % Gain Nonlinearity VOUT = −10 V to +10 V G = 1 RL = 2 kΩ 0.5 5 0.5 5 ppm G = 10 2 5 2 5 ppm G = 100 4 10 4 10 ppm G = 1000 10 20 10 20 ppm Gain vs. Temperature G = 1 5 1 ppm/°C G > 1 −80 −80 ppm/°C Rev. A | Page 6 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