Datasheet AD8222 (Analog Devices) - 3

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Data Sheet AD8222 SPECIFICATIONS
VS = ±15 V, VREF = 0 V, TA = 25°C, G = 1, RL = 2 kΩ, unless otherwise noted.
Table 2. Single-Ended and Differential1 Output Configuration A Grade B Grade Parameter Test Conditions/Comments Min Typ Max Min Typ Max Unit
COMMON-MODE REJECTION VCM = –10 V to +10 V RATIO (CMRR) CMRR DC to 60 Hz 1 kΩ source imbalance G = 1 80 86 dB G = 10 100 106 dB G = 100 120 126 dB G = 1000 130 140 dB CMRR at 4 kHz G = 1 80 80 dB G = 10 90 100 dB G = 100 100 110 dB G = 1000 100 110 dB CMRR Drift TA = −40°C to +85°C, G = 1 0.07 0.07 µV/V/°C NOISE Voltage Noise, 1 kHz RTI noise = √(e 2 NI + (eNO/G)2) Input Voltage Noise, eNI V+IN, V−IN, VREF = 0 V 8 8 nV/√Hz Output Voltage Noise, eNO V+IN, V−IN, VREF = 0 V 75 75 nV/√Hz RTI f = 0.1 Hz to 10 Hz G = 1 2 2 µV p-p G = 10 0.5 0.5 µV p-p G = 100 to 1000 0.25 0.25 µV p-p Current Noise f = 1 kHz 40 40 fA/√Hz f = 0.1 Hz to 10 Hz 6 6 pA p-p VOLTAGE OFFSET RTI VOS = (VOSI) + (VOSO/G) Input Offset, VOSI VS = ±5 V to ±15 V 120 60 µV Over Temperature TA = −40°C to +85°C 150 80 µV Average TC 0.4 0.3 µV/°C Output Offset, VOSO VS = ±5 V to ±15 V 500 350 µV Over Temperature TA = −40°C to +85°C 0.8 0.5 mV Average TC 9 5 µV/°C Offset RTI vs. Supply (PSR) VS = ±2.3 V to ±18 V G = 1 90 110 94 110 dB G = 10 110 120 114 130 dB G = 100 124 130 130 140 dB G = 1000 130 140 140 150 dB INPUT CURRENT (PER CHANNEL) Input Bias Current, IBIAS 0.5 2.0 0.2 1.0 nA Over Temperature TA = −40°C to +85°C 3.0 1.5 nA Average TC 1 1 pA/°C Input Offset Current, IOFFSET 0.2 1 0.1 0.5 nA Over Temperature TA = −40°C to +85°C 1.5 0.6 nA Average TC 1 0.5 2 pA/°C Rev. B | Page 3 of 24 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE Maximum Power Dissipation ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION AMPLIFIER ARCHITECTURE GAIN SELECTION REFERENCE TERMINAL PACKAGE CONSIDERATIONS Package Without Thermal Pad Package with Thermal Pad LAYOUT Common-Mode Rejection Over Frequency Reference Power Supplies INPUT BIAS CURRENT RETURN PATH INPUT PROTECTION Input Voltages Beyond the Rails Differential Input Voltages at High Gains RF INTERFERENCE COMMON-MODE INPUT VOLTAGE RANGE APPLICATIONS INFORMATION DIFFERENTIAL OUTPUT Setting the Common-Mode Voltage 2-Channel Differential Output Using a Dual Op Amp DRIVING A DIFFERENTIAL INPUT ADC RFI and Antialiasing Filter Second Antialiasing Filter Reference PRECISION STRAIN GAGE DRIVING CABLING OUTLINE DIMENSIONS ORDERING GUIDE