AD5282BRUZ50 Analog Devices, AD5282BRUZ50 Datasheet
AD5282BRUZ50
Specifications of AD5282BRUZ50
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AD5282BRUZ50 Summary of contents
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... Rev. B Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. ...
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AD5280/AD5282 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagrams............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Electrical Characteristics............................................................. 3 Absolute Maximum Ratings............................................................ 5 Thermal Resistance ...................................................................... 5 ESD Caution.................................................................................. 5 Pin Configurations and ...
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SPECIFICATIONS ELECTRICAL CHARACTERISTICS Table 1. Parameter Symbol DC CHARACTERISTICS–RHEOSTAT MODE 2 Resistor Differential NL R-DNL Resistor Nonlinearity 2 R-INL 3 Nominal Resistor Tolerance ...
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AD5280/AD5282 Parameter Symbol Total Harmonic Distortion THD V Settling Time Crosstalk CT Analog Crosstalk CTA Resistor Noise Voltage e N_WB INTERFACE TIMING CHARACTERISTICS (applies to all parts) SCL Clock Frequency f SCL t Bus Free Time Between ...
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ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 2. Parameter V to GND GND GND ...
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AD5280/AD5282 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS AD5280 B TOP VIEW SHDN 5 6 SCL 7 SDA Figure 4. AD5280 Pin Configuration Table 4. AD5280 Pin Function Descriptions Pin No. Mnemonic Description 1 ...
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TYPICAL PERFORMANCE CHARACTERISTICS 1.0 0.8 0.6 +5V 0.4 0.2 0 –0.2 ±5V –0.4 +15V –0.6 –0.8 –1 128 CODE (Decimal) Figure 6. R-INL vs. Code vs. Supply Voltages 0.5 0.4 0.3 ±5V +15V 0.2 0.1 0 ...
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AD5280/AD5282 1.0 AVG +3σ 0.5 AVG AVG –3σ 0 –0.5 –1 – ( Figure 12. INL Over Supply Voltage 2.0 1.5 AVG +3σ 1.0 AVG 0.5 AVG –3σ 0 –0.5 –1.0 –1.5 ...
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LOGIC 100 5V/ LOGIC (V) IH Figure 18. V Supply Current vs. Digital Input Voltage LOGIC 700 600 500 400 300 20kΩ ...
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AD5280/AD5282 0 –6 – 50kΩ –18 150kHz – 200kΩ –30 35kHz –36 –42 –48 –54 –60 0 10k FREQUENCY (Hz) Figure 24. −3 dB Bandwidth –6dB R = 200kΩ 100 1k FREQUENCY (Hz) Figure 25. Normalized ...
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A2 1.0V 33.41µs 1.50µs Figure 30. Digital Feedthrough vs. Time 100 25° 1 20kΩ 50kΩ 200kΩ 128 ...
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AD5280/AD5282 TEST CIRCUITS Figure 33 to Figure 43 define the test conditions used in the product specification table. DUT 1LSB = V+/ Figure 33. Potentiometer Divider Nonlinearity Error (INL, DNL) NO CONNECT ...
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CONNECT DUT B V GND Figure 41. Common-Mode Leakage Current V I LOGIC LOGIC SCL SCA DIGITAL INPUT VOLTAGE Figure 42. V Current vs. Digital Input ...
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AD5280/AD5282 THEORY OF OPERATION The AD5280/AD5282 are single-channel and dual-channel, 256-position, digitally controlled variable resistors (VRs). To program the VR settings, see the Digital Interface section. Both parts have an internal power-on preset that places the wiper at midscale during ...
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Terminal A and Terminal B is − D 256 256 256 For a more accurate calculation that includes the effect of wiper resistance, V ...
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AD5280/AD5282 DIGITAL INTERFACE 2-WIRE SERIAL BUS The AD5280/AD5282 are controlled via an I bus. The RDACs are connected to this bus as slave devices. As shown in Figure 45, Figure 46, and Table 6, the first byte of the AD5280/AD5282 ...
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READBACK RDAC VALUE The AD5280/AD5282 allow the user to read back the RDAC values in read mode. However, for the dual-channel AD5282, the channel of interest is the one that is previously selected in the write mode. When users need ...
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AD5280/AD5282 LEVEL SHIFT FOR BIDIRECTIONAL INTERFACE While most old systems can be operated at one voltage, a new component can be optimized at another. When two systems operate the same signal at two different voltages, proper level shifting is needed. ...
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LAYOUT AND POWER SUPPLY BYPASSING good practice to design a layout with compact, minimum lead lengths. The leads to the input should be as direct as possible with a minimum conductor length. Ground paths should have low ...
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AD5280/AD5282 APPLICATIONS INFORMATION BIPOLAR OPERATION FROM DUAL SUPPLIES The AD5280/AD5282 can be operated from dual supplies enabling control of ground-referenced ac signals or bipolar operation. The ac signal, as high directly across Terminal A ...
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BIPOLAR DAC OUT +5V +15V REF TRIM GND – ADR425 OP2177 + A 1 –15V Figure 58. 8-Bit Bipolar DAC Figure 58 shows a low ...
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AD5280/AD5282 PROGRAMMABLE CURRENT SOURCE + (2.048 + SLEEP OUT B REF191 C1 1µF GND A 4 +5V AD5280 V+ OP8510 OP8510 U2 U2 –2.048V ...
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PROGRAMMABLE LOW-PASS FILTER In analog-to-digital conversion applications common to include an antialiasing filter to band-limit the sampling signal. Dual-channel digital potentiometers can be used to construct a second-order Sallen key low-pass filter (see Figure 63). The design equations ...
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AD5280/AD5282 RDAC CIRCUIT SIMULATION MODEL The internal parasitic capacitances and the external capacitive loads dominate the ac characteristics of the RDACs. Configured as a potentiometer divider, the −3 dB bandwidth of the AD5280 (20 kΩ resistor) measures 310 kHz at ...
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OUTLINE DIMENSIONS 1.05 1.00 0.80 0.15 0.05 5.10 5.00 4. 4.50 6.40 4.40 BSC 4. PIN 1 0.65 BSC 0.20 1.20 0.09 MAX 0.15 0.30 SEATING 0.05 0.19 COPLANARITY PLANE 0.10 COMPLIANT TO JEDEC STANDARDS MO-153-AB-1 ...
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... AD5282BRU200 2 AD5282BRU200-REEL7 2 2 AD5282BRUZ20 2 2 AD5282BRUZ20-REEL7 2 2 AD5282BRUZ50 2 2 AD5282BRUZ50-REEL7 2 2 AD5282BRUZ200 2 AD5282BRUZ200- AD5282-EVAL 2 1 Line 1 contains model number, Line 2 contains ADI logo followed by the end-to-end resistance value, and Line 3 contains date code YYWW RoHS Compliant Part. Temperature R (kΩ ...
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NOTES Rev Page AD5280/AD5282 ...
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... AD5280/AD5282 NOTES ©2002–2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C02929-0-8/07(B) Rev Page ...