AD5227BUJZ100-R2 Analog Devices Inc, AD5227BUJZ100-R2 Datasheet
AD5227BUJZ100-R2
Specifications of AD5227BUJZ100-R2
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AD5227BUJZ100-R2 Summary of contents
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FEATURES 64-position digital potentiometer 10 kΩ, 50 kΩ, 100 kΩ end-to-end terminal resistance Simple up/down digital or manual configurable control Midscale preset Low potentiometer mode tempco = 10 ppm/°C Low rheostat mode tempco = 35 ppm/°C Ultralow power ...
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AD5227 TABLE OF CONTENTS Electrical Characteristics ................................................................. 3 Interface Timing Diagrams ......................................................... 4 Absolute Maximum Ratings ............................................................ 5 ESD Caution .................................................................................. 5 Pin Configuration and Function Descriptions ............................. 6 Typical Performance Characteristics ............................................. 7 Theory of Operation ...................................................................... 10 Programming ...
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ELECTRICAL CHARACTERISTICS 10 kΩ, 50 kΩ, 100 kΩ versions ± 10 ± 10 Table 2. Parameter DC CHARACTERISTICS RHEOSTAT MODE 2 Resistor Differential Nonlinearity 2 Resistor Integral Nonlinearity 3 Nominal Resistor ...
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AD5227 Parameter INTERFACE TIMING CHARACTERISTICS (applies to all parts Clock Frequency Input Clock Pulse Width CS to CLK Setup Time CS Rise to CLK Hold Time U/D to Clock Fall Setup Time 1 Typicals represent average readings at 25°C, V ...
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ABSOLUTE MAXIMUM RATINGS Table 3. Parameter V to GND GND Digital Input Voltage to GND (CS, CLK, U/D) Maximum Current Pulsed Continuous (R ...
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AD5227 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 4. Pin Function Descriptions Pin No. Mnemonic Description 1 CLK Clock Input. Each clock pulse executes the step-up or step-down of the resistance. The direction is determined by the state of the U/D ...
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TYPICAL PERFORMANCE CHARACTERISTICS 0.25 0.20 0.15 0.10 0.05 0 –0.05 –0.10 –0.15 –0.20 –0. CODE (Decimal) Figure 6. R-INL vs. Code vs. Temperature, V 0.25 0.20 0.15 0.10 0.05 0 –0.05 –0.10 –0.15 –0.20 ...
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AD5227 1 0.1 –40 – TEMPERATURE (°C) Figure 12. Supply Current vs. Temperature 100kΩ 50kΩ 10kΩ AB 0.1 –40 – TEMPERATURE (°C) Figure ...
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REF LEVEL /DIV MARKER 0dB 6.0dB MAG (A/ STEPS –6 16 STEPS –12 8 STEPS –18 4 STEPS –24 2 STEPS –30 1 STEP –36 –42 –48 –54 1k 10k 100k START 1 000.000Hz ...
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AD5227 THEORY OF OPERATION The AD5227 is a 64-position 3-terminal digitally controlled potentiometer device. It presets to a midscale at system power- on. When CS is enabled, changing the resistance settings is achieved by clocking the CLK pin ...
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The change known provided that the AD5227 has not WB reached the maximum or minimum scale. If one ignores the effect of the wiper resistance, the transfer functions can be simplified as CP Δ ...
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AD5227 APPLICATIONS MANUAL CONTROL WITH TOGGLE AND PUSHBUTTON SWITCHES The AD5227’s simple interface allows used with mechanical switches for simple manual operation. The states of the CS and U/ D can be selected by toggle switches and ...
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The U1 ADP3333ARM-1 1.5 V LDO that is lifted above or lowered below 0 V. When V of the AD5227 is at minimum, WB there is no current through D1, so the GND pin of U1 would be ...
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AD5227 CONSTANT BIAS WITH SUPPLY TO RETAIN RESISTANCE SETTING Users who consider EEMEM potentiometers but cannot justify the additional cost and programming for their designs can con- sider constantly biasing the AD5227 with the supply to retain the resistance setting ...
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... AD5227BUJZ100-RL7 100 −40°C to +105°C 2 AD5227BUJZ100-R2 100 −40°C to +105°C AD5227EVAL 10 1 The end-to-end resistance R is available in 10 kΩ, 50 kΩ, and 100 kΩ versions. The final three characters of the part number determine the nominal resistance value, AB for example, 10 kΩ ...
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AD5227 NOTES © 2004–2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04419–0–5/09(B) Rev Page ...