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AD5251BRU1-RL7 Fiches technique(PDF) 3 Page - Analog Devices |
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AD5251BRU1-RL7 Fiches technique(HTML) 3 Page - Analog Devices |
3 / 28 page Data Sheet AD5251/AD5252 Rev. D | Page 3 of 28 ELECTRICAL CHARACTERISTICS 1 kΩ VERSION VDD = 3 V ± 10% or 5 V ± 10%, VSS = 0 V or VDD/VSS = ±2.5 V ± 10%, VA = VDD, VB = 0 V, –40°C < TA < +105°C, unless otherwise noted. Table 1. Parameter Symbol Conditions Min Typ1 Max Unit DC CHARACTERISTICS— RHEOSTAT MODE Resolution N AD5251 6 Bits AD5252 8 Bits Resistor Differential Nonlinearity2 R-DNL R WB, RWA = NC, VDD = 5.5 V, AD5251 –0.5 ±0.2 +0.5 LSB R WB, RWA = NC, VDD = 5.5 V, AD5252 –1.00 ±0.25 +1.00 LSB R WB, RWA = NC, VDD = 2.7 V, AD5251 –0.75 ±0.30 +0.75 LSB R WB, RWA = NC, VDD = 2.7 V, AD5252 –1.5 ±0.3 +1.5 LSB Resistor Nonlinearity2 R-INL R WB, RWA = NC, VDD = 5.5 V, AD5251 –0.5 ±0.2 +0.5 LSB R WB, RWA = NC, VDD = 5.5 V, AD5252 –2.0 ±0.5 +2.0 LSB R WB, RWA = NC, VDD = 2.7 V, AD5251 –1.0 +2.5 +4.0 LSB R WB, RWA = NC, VDD = 2.7 V, AD5252 –2 +9 +14 LSB Nominal Resistor Tolerance ΔR AB/RAB T A = 25°C –30 +30 % Resistance Temperature Coefficient (ΔR AB/RAB) × 10 6/ΔT 650 ppm/°C Wiper Resistance R W I W = 1 V/R, VDD = 5 V 75 130 Ω I W = 1 V/R, VDD = 3 V 200 300 Ω Channel-Resistance Matching ΔR AB1/ΔRAB3 0.15 % DC CHARACTERISTICS— POTENTIOMETER DIVIDER MODE Differential Nonlinearity3 DNL AD5251 –0.5 ±0.1 +0.5 LSB AD5252 –1.00 ±0.25 +1.00 LSB Integral Nonlinearity3 INL AD5251 –0.5 ±0.2 +0.5 LSB AD5252 –2.0 ±0.5 +2.0 LSB Voltage Divider Tempco (ΔV W/VW) × 10 6/ΔT Code = half scale 25 ppm/°C Full-Scale Error V WFSE Code = full scale, V DD = 5.5 V, AD5251 –5 –3 0 LSB Code = full scale, V DD = 5.5 V, AD5252 –16 –11 0 LSB Code = full scale, V DD = 2.7 V, AD5251 −6 –4 0 LSB Code = full scale, V DD = 2.7 V, AD5252 –23 –16 0 LSB Zero-Scale Error V WZSE Code = zero scale, V DD = 5.5 V, AD5251 0 3 5 LSB Code = zero scale, V DD = 5.5 V, AD5252 0 11 16 LSB Code = zero scale, V DD = 2.7 V, AD5251 0 4 6 LSB Code = zero scale, V DD = 2.7 V, AD5252 0 15 20 LSB RESISTOR TERMINALS Voltage Range4 V A, VB, VW V SS V DD V Capacitance5 A, B C A, CB f = 1 kHz, measured to GND, code = half scale 85 pF Capacitance5 W C W f = 1 kHz, measured to GND, code = half scale 95 pF Common-Mode Leakage Current I CM V A = VB = VDD/2 0.01 1 µA |
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Description similaire - AD5251BRU1-RL7 |
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