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AD5251BRU50 Datenblatt(PDF) 5 Page - Analog Devices |
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AD5251BRU50 Datenblatt(HTML) 5 Page - Analog Devices |
5 / 28 page AD5251/AD5252 Rev. 0 | Page 5 of 28 10 kΩ, 50 kΩ, 100 kΩ Versions. 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 2. Parameter Symbol Conditions Min Typ1 Max Unit DC CHARACTERISTICS RHEOSTAT MODE Resolution N AD5251/AD5252 6/8 Bits Resistor Differential NL2 R-DNL RWB, RWA = NC, AD5251 −0.75 ±0.1 +0.75 LSB RWB, RWA = NC, AD5252 −1 ±0.25 +1 LSB Resistor Nonlinearity2 R-INL RWB, RWA = NC, AD5251 −0.75 ±0.25 +0.75 LSB RWB, RWA = NC, AD5252 −2.5 ±1 +2.5 LSB Nominal Resistor Tolerance ∆RAB/RAB TA = 25°C −20 +20 % 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/∆RAB2 RAB = 10 kΩ, 50 kΩ 0.15 % RAB = 100 kΩ 0.05 % DC CHARACTERISTICS POTENTIOMETER DIVIDER MODE Differential Nonlinearity3 DNL AD5251 −0.5 ±0.1 +0.5 LSB AD5252 −1 ±0.3 +1 LSB Integral Nonlinearity 3 INL AD5251 −0.5 ±0.15 +0.5 LSB AD5252 −1.5 ±0.5 +1.5 LSB Voltage Divider Temperature Coefficent (∆VW/VW) × 106/∆T Code = half scale 15 ppm/°C Full-Scale Error VWFSE Code = full scale, AD5251 −1 −0.3 0 LSB Code = full scale, AD5252 −3 −1 0 LSB Zero-Scale Error VWZSE Code = zero scale, AD5251 0 0.3 1 LSB Code = zero scale, AD5252 0 1.2 3 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 = 5 V, VSS = 0 V 0.8 V VDD/VSS = +2.7 V/0 V or VDD/VSS =±2.5 V 0.6 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 Leakage Current IWP WP = VDD 5 µA A0 Leakage Current IA0 A0 = GND 3 µA Input Leakage Current (Other than WP and A0) II VIN = 0 V or VDD ±1 µA Input Capacitance5 CI 5 pF POWER SUPPLIES Single-Supply Power Range VDD VSS = 0 V 2.7 5.5 V |
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Ähnliche Beschreibung - AD5251BRU50 |
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