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ADA4254ACPZ-R7 数据表(PDF) 5 Page - Analog Devices |
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ADA4254ACPZ-R7 数据表(HTML) 5 Page - Analog Devices |
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5 / 59 page  Data Sheet ADA4254 Rev. B | Page 5 of 59 Parameter Test Conditions/Comments Min Typ Max Unit GAIN Output voltage (VOUT) = 8.5 V p-p2 Input Gain Range 1/16 to 128 V/V Output Gain Range 1, 1.25, 1.375 V/V Gain Error Before Calibration All Gains <±0.06 ±0.12 % Using Calibration Coefficient All Gains <±0.01 ±0.025 % All Gain Values Except as Follows: TA = −40°C to +105°C1 <±0.3 ±1 ppm/°C G = 1/16 V/V, All Scaling Gains TA = −40°C to +105°C1 ±0.8 ±1.5 ppm/°C G = 32 V/V, 64 V/V, All Scaling Gains TA = −40°C to +105°C1 ±0.4 ±1.5 ppm/°C G = 128 V/V, Scaling Gains 1 V/V, 1.25 V/V TA = −40°C to +105°C1 ±0.6 ±2 ppm/°C G = 128 V/V, Scaling Gain 1.375 V/V TA = −40°C to +105°C1 ±0.7 ±2.5 ppm/°C Nonlinearity All gains except 32 V/V, 64 V/V and 128 V/V2, 3 5 15 ppm G = 32 V/V 7.5 ppm G = 64 V/V 12 ppm G = 128 V/V 15 ppm NOISE Total noise, RTI = 2 2 no ni e e Gain Voltage Noise, 1 kHz, RTI Input Noise (eni) 17 nV/√Hz Output Noise (eno) 253 nV/√Hz 0.1 Hz to 10 Hz, RTI G = 1/16 V/V 95 μV p-p G = 1 V/V 5.75 μV p-p G = 128 V/V 330 nV p-p 0.01 Hz to 10 Hz, RTI G = 1/16 V/V 100 μV p-p G = 1 V/V 6.8 μV p-p G = 128 V/V 395 nV p-p Current Noise 10 Hz 100 fA/√Hz 0.1 Hz to 10 Hz 3.1 pA p-p 0.01 Hz to 10 Hz 4 pA p-p INPUT CHARACTERISTICS Input Bias Current ±0.45 ±1.5 nA TA = −40°C to +85°C1 ±4 nA TA = −40°C to +105°C1 ±14 nA Input Offset Current ±0.2 ±1.3 nA TA = −40°C to +85°C1 ±2.5 nA TA = −40°C to +105°C1 ±3.5 nA Input Impedance Common mode >1||11 GΩ||pF Differential >1||4.7 GΩ||pF Input Operating Voltage Range Guaranteed by CMRR VSSH + 3 VDDH − 3 V MUX_OVER_VOLT_ERR Positive Threshold VDDH − 0.9 V Negative Threshold VSSH + 0.9 V INPUT_ERR/GAIN_RST Positive Threshold VDDH − 1.5 V Negative Threshold VSSH + 1.5 V |
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