Datasheet AD8230 (Analog Devices) - 3

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AD8230 SPECIFICATIONS
VS = ±5 V, VREF = 0 V, RF = 100 kΩ, RG = 1 kΩ (@ TA = 25°C, G = 202, RL = 10 kΩ, unless otherwise noted).
Table 1. Parameter Conditions Min Typ Max Unit
VOLTAGE OFFSET RTI Offset, VOSI V+IN = V−IN = 0 V 10 μV Offset Drift V+IN = V−IN = 0 V, 50 nV/°C TA = −40°C to +125°C COMMON-MODE REJECTION (CMR) CMR to 60 Hz with 1 kΩ Source Imbalance VCM = −5 V to +5 V 110 120 dB VOLTAGE OFFSET RTI vs. SUPPLY (PSR) G = 2 120 120 dB G = 202 120 140 dB GAIN G = 2(1 + RF/RG) Gain Range 101 1000 V/V Gain Error2 G = 2 0.01 0.04 % G = 10 0.01 0.04 % G = 100 0.01 0.04 % G = 1000 0.02 0.05 % Gain Nonlinearity 20 ppm Gain Drift G = 2, 10, 102 14 ppm/°C G = 1002 60 ppm/°C INPUT Input Common-Mode Operating Voltage Range −VS +VS V Over Temperature T = −40°C to +125°C −VS +VS V Input Differential Operating Voltage Range 750 mV Average Input Offset Current3 VCM = 0 V 33 300 pA Average Input Bias Current3 VCM = 0 V 0.15 1 nA OUTPUT Output Swing −VS + 0.1 +VS − 0.2 V Over Temperature T = −40°C to +125°C −VS + 0.1 +VS − 0.2 V Short-Circuit Current 15 mA REFERENCE INPUT Voltage Range4 −VS + 3.5 +VS − 2.5 V NOISE Voltage Noise Density, 1 kHz, RTI VIN+, VIN−, VREF = 0 V 240 nV/√Hz Voltage Noise f = 0.1 Hz to 10 Hz 3 μV p-p SLEW RATE VIN = 500 mV, G = 10 2 V/μs INTERNAL SAMPLE RATE 6 kHz POWER SUPPLY Operating Range (Dual Supplies) ±4 ±8 V Operating Range (Single Supply) 8 16 V Quiescent Current T = −40°C to +125°C 2.7 3.5 mA TEMPERATURE RANGE Specified Performance −40 +125 °C 1 The AD8230 can operate as low as G = 2. However, since the differential input range is limited to approximately 750 mV, the AD8230 configured at G < 10 does not make use of the full output voltage range. 2 Gain drift is determined by the TC match of the external gain setting resistors. 3 Differential source resistance less than 10 kΩ does not result in voltage offset due to input bias current or mismatched series resistors. 4 For G < 10, the reference voltage range is limited to −VS + 4.24 V to +VS – 2.75 V. Rev. B | Page 3 of 16 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION CONNECTION DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL CHARACTERISTICS ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION SETTING THE GAIN LEVEL-SHIFTING THE OUTPUT SOURCE IMPEDANCE AND INPUT SETTLING TIME INPUT VOLTAGE RANGE INPUT PROTECTION POWER SUPPLY BYPASSING POWER SUPPLY BYPASSING FOR MULTIPLE CHANNEL SYSTEMS LAYOUT APPLICATIONS OUTLINE DIMENSIONS ORDERING GUIDE