Datasheet AD5228 (Analog Devices) - 3
| Hersteller | Analog Devices |
| Beschreibung | 32-Position Manual Up/Down Control Potentiometer |
| Seiten / Seite | 18 / 3 — Data Sheet. AD5228. ELECTRICAL CHARACTERISTICS. Table 2. Parameter. … |
| Revision | B |
| Dateiformat / Größe | PDF / 385 Kb |
| Dokumentensprache | Englisch |
Data Sheet. AD5228. ELECTRICAL CHARACTERISTICS. Table 2. Parameter. Symbol. Conditions. Min. Typ1 Ma. x Unit
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Data Sheet AD5228 ELECTRICAL CHARACTERISTICS
10 kΩ, 50 kΩ, 100 kΩ versions: VDD = 3 V ± 10% or 5 V ± 10%, VA = VDD, VB = 0 V, −40°C < TA < +105°C, unless otherwise noted.
Table 2. Parameter Symbol Conditions Min Typ1 Ma x Unit
DC CHARACTERISTICS, RHEOSTAT MODE Resistor Differential Nonlinearity2 R-DNL RWB, A terminal = no connect −0.5 ±0.05 +0.5 LSB Resistor Integral Nonlinearity2 R-INL RWB, A terminal = no connect −0.5 ±0.1 +0.5 LSB Nominal Resistor Tolerance3 ∆RAB/RAB −20 +20 % Resistance Temperature Coefficient (∆RAB/RAB) × 104/∆T 35 ppm/°C Wiper Resistance RW VDD = 2.7 V 100 250 Ω VDD = 2.8 V to 5.5 V 50 200 Ω DC CHARACTERISTICS, POTENTIOMETER DIVIDER MODE (Specifications apply to all RDACs) Resolution N 5 Bits Integral Nonlinearity3 INL −0.5 ±0.05 +0.5 LSB Differential Nonlinearity3, 5 DNL −0.5 ±0.05 +0.5 LSB Voltage Divider Temperature Coefficient (∆VW/VW) × 104/∆T Midscale 5 ppm/°C Full-Scale Error VWFSE ≥+15 steps from midscale −1 .2 −0.5 0 LSB Zero-Scale Error VWZSE ≤−16 steps from midscale 0 0.3 0.6 LSB RESISTOR TERMINALS Voltage Range6 VA, B, W With respect to GND 0 VDD V Capacitance4 A, B CA, B f = 1 MHz, measured to GND 140 pF Capacitance4 W CW f = 1 MHz, measured to GND 150 pF Common-Mode Leakage ICM VA = VB = VW 1 nA PU, PD INPUTS Input High VIH VDD = 5 V 2.4 5.5 V Input Low VIL VDD = 5 V 0 0.8 V Input Current II VIN = 0 V or 5 V ±1 μA Input Capacitance4 CI 5 pF POWER SUPPLIES Power Supply Range VDD VDD = 5 V, PU = PD = VDD 2.7 5.5 V Supply Standby Current IDD_STBY 0.4 3 μA Supply Active Current7 IDD_ACT VDD = 5 V, PU or PD = 0 V 50 110 μA Power Dissipation7, 8 PDISS VDD = 5 V 17 μW Power Supply Sensitivity PSSR VDD = 5 V ± 10% 0.01 0.05 %/% Footnotes on next page. Rev. B | Page 3 of 18 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY ELECTRICAL CHARACTERISTICS INTERFACE TIMING DIAGRAMS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION PROGRAMMING THE DIGITAL POTENTIOMETERS Rheostat Operation Potentiometer Mode Operation CONTROLLING INPUTS TERMINAL VOLTAGE OPERATION RANGE POWER-UP AND POWER-DOWN SEQUENCES LAYOUT AND POWER SUPPLY BIASING APPLICATIONS MANUAL ADJUSTABLE LED DRIVER ADJUSTABLE CURRENT SOURCE FOR LED DRIVER ADJUSTABLE HIGH POWER LED DRIVER AUTOMATIC LCD PANEL BACKLIGHT CONTROL AUDIO AMPLIFIER WITH VOLUME CONTROL CONSTANT BIAS WITH SUPPLY TO RETAIN RESISTANCE SETTING OUTLINE DIMENSIONS ORDERING GUIDE
Data Sheet AD5228 ELECTRICAL CHARACTERISTICS
10 kΩ, 50 kΩ, 100 kΩ versions: VDD = 3 V ± 10% or 5 V ± 10%, VA = VDD, VB = 0 V, −40°C < TA < +105°C, unless otherwise noted.
Table 2. Parameter Symbol Conditions Min Typ1 Ma x Unit
DC CHARACTERISTICS, RHEOSTAT MODE Resistor Differential Nonlinearity2 R-DNL RWB, A terminal = no connect −0.5 ±0.05 +0.5 LSB Resistor Integral Nonlinearity2 R-INL RWB, A terminal = no connect −0.5 ±0.1 +0.5 LSB Nominal Resistor Tolerance3 ∆RAB/RAB −20 +20 % Resistance Temperature Coefficient (∆RAB/RAB) × 104/∆T 35 ppm/°C Wiper Resistance RW VDD = 2.7 V 100 250 Ω VDD = 2.8 V to 5.5 V 50 200 Ω DC CHARACTERISTICS, POTENTIOMETER DIVIDER MODE (Specifications apply to all RDACs) Resolution N 5 Bits Integral Nonlinearity3 INL −0.5 ±0.05 +0.5 LSB Differential Nonlinearity3, 5 DNL −0.5 ±0.05 +0.5 LSB Voltage Divider Temperature Coefficient (∆VW/VW) × 104/∆T Midscale 5 ppm/°C Full-Scale Error VWFSE ≥+15 steps from midscale −1 .2 −0.5 0 LSB Zero-Scale Error VWZSE ≤−16 steps from midscale 0 0.3 0.6 LSB RESISTOR TERMINALS Voltage Range6 VA, B, W With respect to GND 0 VDD V Capacitance4 A, B CA, B f = 1 MHz, measured to GND 140 pF Capacitance4 W CW f = 1 MHz, measured to GND 150 pF Common-Mode Leakage ICM VA = VB = VW 1 nA PU, PD INPUTS Input High VIH VDD = 5 V 2.4 5.5 V Input Low VIL VDD = 5 V 0 0.8 V Input Current II VIN = 0 V or 5 V ±1 μA Input Capacitance4 CI 5 pF POWER SUPPLIES Power Supply Range VDD VDD = 5 V, PU = PD = VDD 2.7 5.5 V Supply Standby Current IDD_STBY 0.4 3 μA Supply Active Current7 IDD_ACT VDD = 5 V, PU or PD = 0 V 50 110 μA Power Dissipation7, 8 PDISS VDD = 5 V 17 μW Power Supply Sensitivity PSSR VDD = 5 V ± 10% 0.01 0.05 %/% Footnotes on next page. Rev. B | Page 3 of 18 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY ELECTRICAL CHARACTERISTICS INTERFACE TIMING DIAGRAMS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION PROGRAMMING THE DIGITAL POTENTIOMETERS Rheostat Operation Potentiometer Mode Operation CONTROLLING INPUTS TERMINAL VOLTAGE OPERATION RANGE POWER-UP AND POWER-DOWN SEQUENCES LAYOUT AND POWER SUPPLY BIASING APPLICATIONS MANUAL ADJUSTABLE LED DRIVER ADJUSTABLE CURRENT SOURCE FOR LED DRIVER ADJUSTABLE HIGH POWER LED DRIVER AUTOMATIC LCD PANEL BACKLIGHT CONTROL AUDIO AMPLIFIER WITH VOLUME CONTROL CONSTANT BIAS WITH SUPPLY TO RETAIN RESISTANCE SETTING OUTLINE DIMENSIONS ORDERING GUIDE