AD5293BRUZ-20 Analog Devices Inc, AD5293BRUZ-20 Datasheet
AD5293BRUZ-20
Specifications of AD5293BRUZ-20
AD5293BRUZ-20-U1
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AD5293BRUZ-20 Summary of contents
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FEATURES Single-channel, 1024-position resolution 20 kΩ, 50 kΩ, and 100 kΩ nominal resistance Calibrated 1% nominal resistor tolerance (resistor performance mode) Rheostat mode temperature coefficient: 35 ppm/°C Voltage divider temperature coefficient: 5 ppm/°C Single-supply operation ...
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AD5293 TABLE OF CONTENTS Features ...............................................................................................1 Applications........................................................................................1 Functional Block Diagram ...............................................................1 General Description ..........................................................................1 Revision History ................................................................................2 Specifications......................................................................................3 Electrical Characteristics—20 kΩ Versions ...............................3 Resistor Performance Mode Code Range—20 kΩ Versions ...4 Electrical Characteristics—50 kΩ and 100 kΩ Versions..........5 Resistor Performance ...
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SPECIFICATIONS ELECTRICAL CHARACTERISTICS—20 kΩ VERSIONS 10 16 −40°C < T < +105°C, unless otherwise noted. A Table 1. Parameter DC ...
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AD5293 Parameter 4, 8 DYNAMIC CHARACTERISTICS Bandwidth Total Harmonic Distortion V Settling Time W Resistor Noise Density 1 Typicals represent average readings at 25° Resistor position nonlinearity error. R-INL is the deviation from an ideal value measured ...
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ELECTRICAL CHARACTERISTICS—50 kΩ AND 100 kΩ VERSIONS 10 16 −40°C < T < +105°C, unless otherwise noted. A Table 3. ...
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AD5293 Parameter 4, 8 DYNAMIC CHARACTERISTICS Bandwidth Total Harmonic Distortion V Settling Time W Resistor Noise Density 1 Typicals represent average readings at 25° Resistor position nonlinearity error. R-INL is the deviation from an ideal value measured ...
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INTERFACE TIMING SPECIFICATIONS ± 2 5.5 V, and −40°C < LOGIC Table 5. 1 Parameter Limit Unit min min 2 ...
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AD5293 TIMING DIAGRAMS SCLK SYNC DIN SDO t 10 RDY RESET SCLK SYNC DIN SDO RDY Figure 3. Write Timing Diagram, ...
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ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 6. Parameter V to GND GND GND LOGIC GND ...
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AD5293 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 8. Pin Function Descriptions Pin No. Mnemonic Description 1 RESET Hardware Reset Pin. Sets the RDAC register to midscale. RESET is activated at the logic high transition. Tie RESET not ...
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TYPICAL PERFORMANCE CHARACTERISTICS 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 0 128 256 384 512 640 CODE (Decimal) Figure 6. R-INL in R-Perf Mode vs. Code vs. Temperature 0 20kΩ AB 0.5 0.4 0.3 ...
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AD5293 0. 20kΩ AB 0.10 0.05 0 –0.05 –0.10 –0.15 +25°C –40°C –0.20 0 128 256 384 512 640 CODE (Decimal) Figure 12. R-DNL in Normal Mode vs. Code vs. Temperature 1 20kΩ AB 1.0 0.5 ...
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R = 20kΩ AB 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 0 128 256 384 512 640 768 CODE (Decimal) Figure 18. INL in Normal Mode vs. Code vs. Temperature 0.10 0.05 0 –0.05 –0.10 –0.15 –0.20 0 ...
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AD5293 700 600 500 400 300 200 100 0 0 256 512 CODE (Decimal) Figure 24. Rheostat Mode Tempco ΔR 0 0x200 –5 –10 0x100 –15 0x080 –20 0x040 –25 0x020 –30 0x010 –35 0x008 –40 0x004 –45 0x002 0x001 ...
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±15V DD SS CODE = HALF SCALE – rms IN Noise BW = 22kHz 20kΩ –30 50kΩ 100kΩ –45 –60 –75 –90 –105 –120 100 1k 10k FREQUENCY (Hz) Figure 30. Total Harmonic ...
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AD5293 1.2 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 – TIME (µs) Figure 36. Maximum Transition Glitch 300 ±15V DD SS 20kΩ 250 50kΩ 100kΩ 200 150 100 ...
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TEST CIRCUITS Figure 39 to Figure 44 define the test conditions used in the Specifications section. NC DUT CONNECT Figure 39. Resistor Position Nonlinearity Error (Rheostat Operation: R-INL, R-DNL) DUT ...
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AD5293 THEORY OF OPERATION The AD5293 digital potentiometer is designed to operate as a true variable resistor for analog signals that remain within the terminal voltage range of V < TERM ±1% resistor tolerance feature helps to minimize ...
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RESET A low-to-high transition of the hardware RESET pin loads the RDAC register with midscale. The AD5293 can also be reset through software by executing Command 3 (see The control register is restored with default bits (see RESISTOR PERFORMANCE MODE ...
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AD5293 Table 13. Control Register Function Register Name Bit Name Control C2 C1 RDAC ARCHITECTURE To achieve optimum performance, Analog Devices, Inc., has patented the RDAC segmentation architecture for all the digital potentiometers. In particular, the AD5293 employs a 3-stage ...
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PROGRAMMING THE POTENTIOMETER DIVIDER Voltage Output Operation The digital potentiometer easily generates a voltage divider at wiper-to-B terminal and wiper-to-A terminal that is proportional to the input voltage shown in Figure 48. Unlike the polarity ...
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AD5293 APPLICATIONS INFORMATION HIGH VOLTAGE DAC The AD5293 can be configured as a high voltage DAC, with an output voltage as high The circuit is shown in Figure 51. The output is ⎡ ⎤ ⎛ ⎞ D ...
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AUDIO VOLUME CONTROL The excellent THD performance and high voltage capability of the AD5293 make it ideal for digital volume control. The AD5293 is used as an audio attenuator; it can be connected directly to a gain amplifier. A large ...
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... COPLANARITY 0.10 ORDERING GUIDE 1 Model R (kΩ) AB AD5293BRUZ-20 20 AD5293BRUZ-20-RL7 20 AD5293BRUZ-50 50 AD5293BRUZ-50-RL7 50 AD5293BRUZ-100 100 AD5293BRUZ-100-RL7 100 RoHS Compliant Part. ©2009–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 5.10 5 ...