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AD8421BRMZ-R7 Datasheet(PDF) 6 Page - Analog Devices |
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AD8421BRMZ-R7 Datasheet(HTML) 6 Page - Analog Devices |
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6 / 28 page  AD8421 Data Sheet Rev. 0 | Page 6 of 28 ARM Grade BRM Grade Parameter Test Conditions/ Comments Min Typ Max Min Typ Max Unit Offset RTI vs. Supply (PSR) VS = ±2.5 V to ±18 V G = 1 90 120 100 120 dB G = 10 110 120 120 140 dB G = 100 124 130 140 150 dB G = 1000 130 140 140 150 dB INPUT CURRENT Input Bias Current 1 2 0.1 1 nA Over Temperature TA = −40°C to +85°C 8 6 nA Average TC 50 50 pA/°C Input Offset Current 0.5 2 0.1 1 nA Over Temperature TA = −40°C to +85°C 3 1.5 nA Average TC 1 1 pA/°C DYNAMIC RESPONSE Small Signal Bandwidth −3 dB G = 1 10 10 MHz G = 10 10 10 MHz G = 100 2 2 MHz G = 1000 0.2 0.2 MHz Settling Time 0.01% 10 V step G = 1 0.7 0.7 μs G = 10 0.4 0.4 μs G = 100 0.6 0.6 μs G = 1000 5 5 μs Settling Time 0.001% 10 V step G = 1 1 1 μs G = 10 0.6 0.6 μs G = 100 0.8 0.8 μs G = 1000 6 6 μs Slew Rate G = 1 to 100 35 35 V/μs GAIN3 G = 1 + (9.9 kΩ/RG) Gain Range 1 10,000 1 10,000 V/V Gain Error VOUT = ±10 V G = 1 0.05 0.02 % G = 10 to 1000 0.3 0.2 % Gain Nonlinearity VOUT = −10 V to +10 V G = 1 RL ≥ 2 kΩ 1 1 ppm RL = 600 Ω 1 3 1 3 ppm G = 10 to 1000 RL ≥ 600 Ω 30 50 30 50 ppm VOUT = −5 V to +5 V 5 10 5 10 ppm Gain vs. Temperature3 G = 1 5 0.1 1 ppm/°C G > 1 −50 −50 ppm/°C INPUT Input Impedance Differential 30||3 30||3 GΩ||pF Common Mode 30||3 30||3 GΩ||pF Input Operating Voltage Range4 VS = ±2.5 V to ±18 V −VS + 2.3 +VS − 1.8 −VS + 2.3 +VS − 1.8 V Over Temperature TA = −40°C −VS + 2.5 +VS − 2.0 −VS + 2.5 +VS − 2.0 V TA = +85°C −VS + 2.1 +VS − 1.8 −VS + 2.1 +VS − 1.8 V |
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