Datasheet AD8220 (Analog Devices) - 7

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AD8220 A Grade B Grade W Grade Parameter Test Conditions Min Typ Max Min Typ Max Min Typ Max Unit
INPUT CURRENT Input Bias Current TA 25 10 25 pA Over Temperature TOPR 0.3 0.3 100 nA Input Offset Current TA 2 0.6 2 pA Over Temperature TOPR 0.005 0.005 10 nA DYNAMIC RESPONSE TA Small Signal Bandwidth, −3 dB G = 1 1500 1500 1500 kHz G = 10 800 800 800 kHz G = 100 120 120 120 kHz G = 1000 14 14 14 kHz Settling Time 0.01% TA G = 1 3 V step 2.5 2.5 2.5 μs G = 10 4 V step 2.5 2.5 2.5 μs G = 100 4 V step 7.5 7.5 7.5 μs G = 1000 4 V step 30 30 30 μs Settling Time 0.001% TA G = 1 3 V step 3.5 3.5 3.5 μs G = 10 4 V step 3.5 3.5 3.5 μs G = 100 4 V step 8.5 8.5 8.5 μs G = 1000 4 V step 37 37 37 μs Slew Rate G = 1 to 100 TA 2 2 2 V/μs GAIN G = 1 + (49.4 kΩ/RG), TA for A, B grades, TOPR for W grade Gain Range 1 1000 1 1000 1 1000 V/V Gain Error VOUT = 0.3 V to 2.9 V for G = 1, VOUT = 0.3 V to 3.8 V for G > 1 G = 1 −0.06 +0.06 −0.04 +0.04 −0.1 +0.1 % G = 10 −0.3 +0.3 −0.2 +0.2 −0.8 +0.8 % G = 100 −0.3 +0.3 −0.2 +0.2 −0.8 +0.8 % G = 1000 −0.3 +0.3 −0.2 +0.2 −0.8 +0.8 % Nonlinearity VOUT = 0.3 V to 2.9 V for G = 1, VOUT = 0.3 V to 3.8 V for G > 1, TA G = 1 RL = 10 kΩ 35 50 35 50 50 ppm G = 10 RL = 10 kΩ 35 50 35 50 50 ppm G = 100 RL = 10 kΩ 50 75 50 75 75 ppm G = 1000 RL = 10 kΩ 650 750 650 750 750 ppm G = 1 RL = 2 kΩ 35 50 35 50 50 ppm G = 10 RL = 2 kΩ 35 50 35 50 50 ppm G = 100 RL = 2 kΩ 50 75 50 75 75 ppm Gain vs. Temperature G = 1 3 10 2 5 3 10 ppm/°C G > 10 −50 −50 −50 ppm/°C INPUT Impedance (Pin to TA 104||6 104||6 104||6 GΩ||pF Ground)2 Input Voltage Range3 TA −0.1 +VS − −0.1 +VS − V 2 2 Over Temperature TOPR −0.1 +VS − −0.1 +VS − −0.1 +VS − V 2.1 2.1 2.2 Rev. B | Page 6 of 28 Document Outline Features Applications Pin Configuration General Description Revision History Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Gain Selection Layout Common-Mode Rejection Ratio (CMRR) Grounding Reference Terminal Power Supply Regulation and Bypassing Input Bias Current Return Path Input Protection RF Interference Common-Mode Input Voltage Range Driving an ADC Applications Information AC-Coupled Instrumentation Amplifier Differential Output Electrocardiogram Signal Conditioning Outline Dimensions Ordering Guide Automotive Products