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AD5252BRU50 bảng dữ liệu(PDF) 3 Page - Analog Devices |
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AD5252BRU50 bảng dữ liệu(HTML) 3 Page - Analog Devices |
3 / 28 page AD5251/AD5252 Rev. 0 | 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 < +85°C, unless otherwise noted. Table 1. Parameter Symbol Conditions Min Typ1 Max Unit DC CHARACTERISTICS RHEOSTAT MODE Resolution N AD5251/AD5252 6/8 Bits Resistor Differential Nonlinearity2 R-DNL RWB, RWA = NC, VDD = 5.5 V, AD5251 –0.5 ±0.2 +0.5 LSB RWB, RWA = NC, VDD = 5.5 V, AD5252 –1 ±0.25 +1 LSB RWB, RWA = NC, VDD = 2.7 V, AD5251 –0.75 ±0.3 +0.75 LSB RWB, RWA = NC, VDD = 2.7 V, AD5252 –1.5 ±0.3 +1.5 LSB Resistor Nonlinearity2 R-INL RWB, RWA = NC, VDD = 5.5 V, AD5251 –0.5 ±0.2 +0.5 LSB RWB, RWA = NC, VDD = 5.5 V, AD5252 –2 ±0.5 +2 LSB RWB, RWA = NC, VDD = 2.7 V, AD5251 –1 +2.5 +4 LSB RWB, RWA = NC, VDD = 2.7 V, AD5252 –2 +9 +14 LSB Nominal Resistor Tolerance ∆RAB/RAB TA = 25°C –30 +30 % Resistance Temperature Coefficent (∆RAB/RAB) × 106/∆T 650 ppm/°C Wiper Resistance RW IW = 1 V/R, VDD = 5 V 75 130 Ω IW = 1 V/R, VDD = 3 V 200 300 Ω Channel Resistance Matching ∆RAB1/∆RAB3 0.15 % DC CHARACTERISTIC POTENTIOMETER DIVIDER MODE Differential Nonlinearity3 DNL AD5251 –0.5 ±0.1 +0.5 LSB AD5252 –1 ±0.25 +1 LSB Integral Nonlinearity3 INL AD5251 –0.5 ±0.2 +0.5 LSB AD5252 –2 ±0.5 +2 LSB Voltage Divider Temperature Coefficent (∆VW/VW) × 106/∆T Code = half scale 25 ppm/°C Full-Scale Error VWFSE Code = full scale, VDD = 5.5 V, AD5251 –5 –3 0 LSB Code = full scale, VDD = 5.5 V, AD5252 –16 –11 0 LSB Code = full scale, VDD = 2.7 V, AD5251 −6 –4 0 LSB Code = full scale, VDD = 2.7 V, AD5252 –23 –16 0 LSB Zero-Scale Error VWZSE Code = zero scale, VDD = 5.5 V, AD5251 0 3 5 LSB Code = zero scale, VDD = 5.5 V, AD5252 0 11 16 LSB Code = zero scale, VDD = 2.7 V, AD5251 0 4 6 LSB Code = zero scale, VDD = 2.7 V, AD5252 0 15 20 LSB RESISTOR TERMINALS Voltage Range4 VA, VB, VW VSS VDD V Capacitance5 Ax, Bx CA, CB f = 1 kHz, measured to GND, Code = half scale 85 pF Capacitance5 Wx CW f = 1 kHz, measured to GND, Code = half scale 95 pF Common-Mode Leakage Current ICM VA = VB = VDD/2 0.01 1 µA DIGITAL INPUTS and OUTPUTS Input Logic High VIH VDD = 5 V, VSS = 0 V 2.4 V VDD/VSS = 2.7 V/0 V or VDD/VSS = ± 2.5 V 2.1 V Input Logic Low VIL VDD = 5V, VSS = 0 V 0.8 V Output Logic High (SDA) VOH RPULL-UP = 2.2 kΩ to VDD = 5 V, VSS = 0 V 4.9 V Output Logic Low (SDA) VOL RPULL-UP = 2.2 kΩ to VDD =5 V, VSS = 0 V 0.4 V |
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