Datasheet AD8421-KGD (Analog Devices) - 3

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Known Good Die AD8421-KGD SPECIFICATIONS
Supply voltage (VS) = ±15 V, REF voltage (VREF) = 0 V, TA = 25°C, gain = 1, and load resistance (RL) = 2 kΩ, unless otherwise noted.
Table 1. Parameter Test Conditions/Comments Min Typ Max Unit
COMMON-MODE REJECTION RATIO (CMRR) CMRR DC to 60 Hz with 1 kΩ Source Common-mode voltage (VCM) = Imbalance −10 V to +10 V Gain = 1 84 dB Gain = 10 104 dB Gain = 100 124 dB Gain = 1000 134 dB Over Temperature, Gain = 1 TA = −40°C to +85°C 80 dB CMRR at 20 kHz VCM = −10 V to +10 V Gain = 1 80 dB Gain = 10 90 dB Gain = 100 100 dB Gain = 1000 100 dB NOISE Voltage Noise, 1 kHz1 +IN voltage (V+IN), −IN voltage (V−IN) = 0 V Input Voltage Noise, eni 3 3.2 nV/√Hz Output Voltage Noise, eno 60 nV/√Hz Peak to Peak, Referred to Input (RTI) Frequency = 0.1 Hz to 10 Hz Gain = 1 2 µV p-p Gain = 10 0.5 µV p-p Gain = 100 to 1000 0.07 µV p-p Current Noise Spectral Density Frequency = 1 kHz 200 fA/√Hz Peak to Peak, RTI Frequency = 0.1 Hz to 10 Hz 18 pA p-p VOLTAGE OFFSET2 Input Offset Voltage, VOSI VS = ±5 V to ±15 V 70 µV Over Temperature TA = −40°C to +85°C 135 µV Average Temperature Coefficient 0.9 µV/°C Output Offset Voltage, VOSO 600 µV Over Temperature TA = −40°C to +85°C 1 mV Average Temperature Coefficient 9 µV/°C Offset RTI vs. Supply (Power Supply Ratio) VS = ±2.5 V to ±18 V Gain = 1 90 120 dB Gain = 10 110 120 dB Gain = 100 124 130 dB Gain = 1000 130 140 dB INPUT CURRENT Input Bias Current 1 2 nA Over Temperature TA = −40°C to +85°C 8 nA Average Temperature Coefficient 50 pA/°C Input Offset Current 0.5 2 nA Over Temperature TA = −40°C to +85°C 3 nA Average Temperature Coefficient 1 pA/°C Rev. 0 | Page 3 of 8 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS OUTLINE DIMENSIONS DIE SPECIFICATIONS AND ASSEMBLY RECOMMENDATIONS ORDERING GUIDE