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AD7280 Datasheet(PDF) 2 Page - Analog Devices |
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AD7280 Datasheet(HTML) 2 Page - Analog Devices |
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2 / 33 page  AD7280 Preliminary Technical Data Rev. PrD | Page 2 of 33 SPECIFICATIONS VDD = 7.5 V to 30 V, VSS = 0 V, DVCC = AVCC = VREG, VDRIVE = 2.7 V to 5.25 V, TA = -40oC to 105oC, unless otherwise noted Table 1. Parameter1 Min Typ Max Unit Test Conditions/Comments DC ACCURACY [Vin(0) to Vin(6)]2 Resolution 12 Bits No Missing Codes Integral Nonlinearity ±1 LSB Differential Nonlinearity ±1 LSB Offset Error 1 LSB Offset Error Drift 3 ppm/oC Offset Error Match 1 LSB Gain Error 1 LSB Gain Error Drift 2 ppm/oC Gain Error Match 1 LSB ADC Unadjusted Error3 0.05 0.1 % -40oC to 85oC 0.08 0.3 % -40oC to 105oC Total Unadjusted Error4 0.07 0.2 % -40oC to 85oC 0.1 0.5 % -40oC to 105oC ANALOG INPUTS [Vin(0) to Vin(6)] Pseudo Differential Input Voltage Vin(n) – Vin(n-1) 1V 2VREF V Absolute Input Voltage VCM - VREF VCM + VREF V Common Mode Input Voltage 0.5 27.5 V DC Leakage Current ±70 nA CNVST pulse every 100ms Input Capacitance 15 pF When in track 3 pF When in hold DC ACCURACY [VT1 to VT6]2 Resolution 12 Bits No Missing Codes Integral Nonlinearity ±1 LSB Differential Nonlinearity ±1 LSB Offset Error 2 LSB Offset Error Drift 2 ppm/oC Offset Error Match 2 LSB Gain Error 2 LSB Gain Error Drift 1.2 ppm/oC Gain Error Match 2 LSB ADC Unadjusted Error5 0.1 0.2 % -40oC to 85oC 0.16 0.6 % -40oC to 105oC Total Unadjusted Error6 0.15 0.4 % -40oC to 85oC 0.2 1 % -40oC to 105oC ANALOG INPUTS (VT1 to VT6) Input Voltage Range 0 2VREF V Leakage Current ±70 nA CNVST pulse every 100ms Input Capacitance 15 pF When in track 3 pF When in hold DYNAMIC PERFORMANCE Common Mode Rejection Ratio [CMRR] -75 dB Up to 10kHz ripple frequency |
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