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AD7280ABSTZ 数据表(PDF) 3 Page - Analog Devices |
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AD7280ABSTZ 数据表(HTML) 3 Page - Analog Devices |
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3 / 48 page  AD7280A Rev. 0 | Page 3 of 48 SPECIFICATIONS VDD = 8 V to 30 V, VSS = 0 V, DVCC = AVCC = VREG, VDRIVE = 2.7 V to 5.5 V, TA = −40°C to +105°C, unless otherwise noted. Table 1. Parameter Min Typ Max Unit Test Conditions/Comments DC ACCURACY (VIN0 TO VIN6)1 Resolution 12 Bits No missing codes Integral Nonlinearity ±1 LSB Differential Nonlinearity ±0.8 LSB Offset Error ±1 LSB Offset Error Match 1 LSB Gain Error ±1 LSB Gain Error Match 1 LSB ADC Unadjusted Error2, 3 ±1.2 mV Total Unadjusted Error4, 5 ±9 mV VIN range6 = 1 V to 4.1 V, −10°C to +85°C ±10 mV VIN range6 = 1 V to 4.1 V, −40°C to +85°C ±1.6 ±14.5 mV VIN range6 = 1 V to 4.1 V, −40°C to +105°C CELL VOLTAGE INPUTS (VIN0 TO VIN6) Pseudo Differential Input Voltage VIN(x) − VIN(x − 1) 1 2 × VREF V Absolute Input Voltage VCM − VREF VCM + VREF V Common-Mode Input Voltage 0.5 27.5 V Static Leakage Current7 ±5 ±70 nA Dynamic Leakage Current7 ±3 nA CNVST pulse every 100 ms Input Capacitance 15 pF DC ACCURACY (AUX1 TO AUX6)1, 8 Resolution 12 Bits No missing codes Integral Nonlinearity ±1 LSB Differential Nonlinearity ±0.8 LSB Offset Error ±2 LSB Offset Error Match 2 LSB Gain Error ±2 LSB Gain Error Match 2 LSB ADC Unadjusted Error9 ±1.2 mV Total Unadjusted Error10 ±20 mV −40°C to +85°C ±1.6 ±22 mV −40°C to +105°C AUXILIARY ADC INPUTS (AUX1 TO AUX6) Input Voltage Range 0 2 × VREF V Static Leakage Current7 ±15 nA Dynamic Leakage Current7 ±3 nA CNVST pulse every 100 ms Input Capacitance 15 pF REFERENCE Reference Voltage 2.494 2.5 2.506 V −40°C to +85°C 2.494 2.5 2.509 V −40°C to +105°C Reference Voltage Temperature Coefficient ±3 ±15 ppm/°C −40°C to +85°C ±11 ppm/°C −40°C to +105°C Output Voltage Hysteresis 50 ppm −40°C to +105°C Long-Term Drift 150 ppm/1000 hours Line Regulation ±5 ppm/V Turn-On Settling Time11, 12 5.5 10 ms VREG = 1 μF, VREF = 1 μF, CREF = 100 nF |
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