ADA4861-3 Analog Devices, ADA4861-3 Datasheet
ADA4861-3
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ADA4861-3 Summary of contents
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... ADC buffers Active filters GENERAL DESCRIPTION The ADA4861 low cost, high speed, current feedback, triple op amp that provides excellent overall performance. The 730 MHz, −3 dB bandwidth, and 625 V/μs slew rate make this amplifier well suited for many high speed applications. With its combination of low price, excellent differential gain (0.01%), differential phase (0.02° ...
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... ADA4861-3 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Pin Configuration............................................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 Thermal Resistance ...................................................................... 5 ESD Caution.................................................................................. 5 Typical Performance Characteristics ............................................. 6 Applications..................................................................................... 13 REVISION HISTORY 3/06—Rev 0 to Rev. A Changes to 20 MHz Active Low-Pass Filter Section.................. 13 Changes to Figure 48 and Figure 49............................................. 13 10/05—Revision 0: Initial Version Gain Configurations ...
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... R = 150 Ω kΩ L Sinking and sourcing Enabled POWER DOWN pins = + − Rev Page ADA4861 301 Ω; and for 499 Ω Min Typ Max Unit 350 MHz 145 MHz 560 MHz ...
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... ADA4861 ± 25° + 150 Ω Table 2. Parameter DYNAMIC PERFORMANCE –3 dB Bandwidth Bandwidth for 0.1 dB Flatness +Slew Rate (Rising Edge) −Slew Rate (Falling Edge) Settling Time to 0.5% (Rise/Fall) NOISE/DISTORTION PERFORMANCE Harmonic Distortion HD2/HD3 Harmonic Distortion HD2/HD3 Input Voltage Noise Input Current Noise ...
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... JA 14-lead SOIC_N 90 Maximum Power Dissipation The maximum safe power dissipation for the ADA4861-3 is limited by the associated rise in junction temperature (T the die. At approximately 150°C, which is the glass transition temperature, the plastic changes its properties. Even temporarily exceeding this temperature limit can change the stresses that the package exerts on the die, permanently shifting the parametric performance of the amplifiers ...
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... ADA4861-3 TYPICAL PERFORMANCE CHARACTERISTICS R = 150 Ω and pF, unless otherwise noted ± 0.2V p-p OUT + 301Ω – – 301Ω –2 – + 200Ω 49.9Ω – +10 200Ω 22.1Ω –5 – ...
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... HD3 –90 –100 – –50 –60 –70 – p-p –90 –100 –110 50 1 Rev Page ADA4861 499Ω 604Ω ± p-p OUT 1 10 100 FREQUENCY (MHz ±5V ...
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... ADA4861-3 200 V = +5V S 100 V = ± –100 0.2V p-p OUT TIME = 5ns/DIV –200 Figure 16. Small Signal Transient Response for Various Supplies 200 C = 9pF 6pF L 100 C = 4pF L 0 –100 V = ± 0.2V p-p OUT TIME = 5ns/DIV –200 Figure 17. Small Signal Transient Response for Various Capacitor Loads 2 ...
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... p-p OUT TIME = 5ns/DIV –1.5 Figure 26. Large Signal Transient Response for Various Capacitor Loads 4 9pF L 3 4pF L 3.0 2 p-p OUT TIME = 5ns/DIV 1.0 Figure 27. Large Signal Transient Response for Various Capacitor Loads Rev Page ADA4861-3 4.0 = +5V 3.5 3.0 2.5 2.0 1.5 1.0 = 6pF C = 6pF L ...
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... ADA4861-3 1800 V = ± 1600 1400 POSITIVE SLEW RATE 1200 1000 800 NEGATIVE SLEW RATE 600 400 200 0 0 0.5 1.0 1.5 2.0 2.5 3.0 INPUT VOLTAGE (V p-p) Figure 28. Slew Rate vs. Input Voltage 700 600 POSITIVE SLEW RATE 500 400 NEGATIVE SLEW RATE 300 200 100 ...
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... V = ± 5 1MHz 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 –0.5 800 900 1000 0 Rev Page ADA4861 ±5V, + p-p OUT 1 10 100 FREQUENCY (MHz) Figure 37. Large Signal All-Hostile Crosstalk V = ± p 100 FREQUENCY (MHz) Figure 38. Common-Mode Rejection vs. Frequency INPUT VOLTAGE × 2 ...
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... ADA4861 ±5V, + 100 1k FREQUENCY (Hz) Figure 40. Input Voltage Noise vs. Frequency SUPPLY VOLTAGE (V) Figure 41. Total Supply Current vs. Supply Voltage ± –5 –10 –15 –20 –25 –5 –4 –3 –2 – ...
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... – IN ADA4861-3 + 0.1µF 10µF –V S Figure 47. Inverting Gain 20 MHz ACTIVE LOW-PASS FILTER The ADA4861-3 triple amplifier lends itself to higher order active filters. Figure 48 shows a 28 MHz, 6-pole, Sallen-Key low-pass filter. R1 562Ω 10pF 1 Large Signal 0.1 dB Flatness 90 60 100 ...
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... S Figure 50. RGB Video Driver DRIVING TWO VIDEO LOADS In applications that require two video loads be driven simultaneously, the ADA4861-3 can deliver. Figure 51 shows the ADA4861-3 configured with dual video loads. Figure 52 shows the dual video load 0.1 dB bandwidth performance CABLE V ...
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... Capacitor C5 prevents constant current from being drawn through the gain set resistor and enables the ADA4861 provide unity gain to the input midsupply voltage, thereby establishing the output voltage dc operating point. Capacitor C6 is the output coupling capacitor. ...
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... ORDERING GUIDE Model Temperature Range 1 ADA4861-3YRZ –40°C to +105°C 1 ADA4861-3YRZ-RL –40°C to +105°C 1 ADA4861-3YRZ-RL7 –40°C to +105° Pb-free part. ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 8.75 (0.3445) 8.55 (0.3366 ...