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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AD8421 датащи(PDF) 3 Page - Analog Devices |
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AD8421 датащи(HTML) 3 Page - Analog Devices |
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3 / 28 page  LT6372-1 3 Rev. 0 For more information www.analog.com ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified temperature range, otherwise specifications are at TA = 25°C. VS = ±15V, VCM = VREF1 = VREF2 = 0V, VCLLO = V–, VCLHI = V+, RL = 2kΩ. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS G Gain Range G = (1 + 24.2k/RG) (Note 2) 1 1000 V/V Gain Error (Notes 3, 4) G = 1 G = 1 G = 10 G = 10 G = 100 G = 100 G = 1000 G = 1000 l l l l –0.004 –0.02 –0.02 –0.05 0.01 0.015 0.12 0.42 0.12 0.42 0.12 0.5 % % % % % % % % Gain vs Temperature (Notes 3, 4) G = 1 (Note 5) G > 1(Note 6) l l 0.2 20 0.5 35 ppm/°C ppm/°C Gain Nonlinearity (Notes 3, 7) VOUT = ±10V, G = 1 VOUT = ±10V, G = 10 VOUT = ±10V, G = 100 VOUT = ±10V, G = 1000 1 3 20 50 3 40 50 ppm ppm ppm ppm VOUT = ±10V, G = 1, RL = 600Ω VOUT = ±10V, G = 10, RL = 600Ω VOUT = ±10V, G = 100, RL = 600Ω VOUT = ±10V, G = 1000, RL = 600Ω 4 6 70 250 ppm ppm ppm ppm VOST, Total Input Referred Offset Voltage, VOST = VOSI + VOSO/G VOSI Input Offset Voltage (Note 8) l ±10 ±60 ±175 μV μV VOSO Output Offset Voltage (Note 8) l ±70 ±275 ±500 μV μV VOSI/T Input Offset Voltage Drift (Notes 5, 8) l ±0.6 μV/°C Input Offset Voltage Hysteresis (Note 9) TA = –40°C to 125°C l ±3 μV VOSO/T Output Offset Voltage Drift (Notes 5, 8) l ±4 μV/°C Output Offset Voltage Hysteresis (Note 9) TA = –40°C to 125°C l ±10 μV IB Input Bias Current TA = –40°C to 85°C TA =–40°Cto125°C l l ±0.1 ±0.8 ±1.5 ±3 nA nA nA IOS Input Offset Current l ±0.2 ±1.4 ±4 nA nA Input Noise Voltage (Note 10) 0.1Hz to 10Hz, G = 1 0.1Hz to 10Hz, G = 1000 2 0.2 μVP-P μVP-P Total RTI Noise = √eni2 + (eno/G)2 (Note 10) eni Input Noise Voltage Density f = 1kHz 7 nV/√Hz eno Output Noise Voltage Density f = 1kHz 65 nV/√Hz Input Noise Current 0.1Hz to 10Hz 10 pAP-P in Input Noise Current Density f = 1kHz 200 fA/√Hz RIN Input Resistance VIN = –12.6V to 13V 225 GΩ CIN Differential Common Mode f = 100kHz f = 100kHz 0.9 15.9 pF pF VCM Input Voltage Range Guaranteed by CMRR l V– + 1.8/V+ – 1.4 V V V– + 2.4 V+ – 2 |
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