ADA4860-1 Analog Devices, ADA4860-1 Datasheet
ADA4860-1
Specifications of ADA4860-1
Available stocks
Related parts for ADA4860-1
ADA4860-1 Summary of contents
Page 1
... ADC buffers Active filters GENERAL DESCRIPTION The ADA4860 low cost, high speed, current feedback op amp that provides excellent overall performance. The 800 MHz, −3 dB bandwidth, and 790 V/μs slew rate make this amplifier well suited for many high speed applications. With its combination of low price, excellent differential gain (0.02%), differential phase (0.02° ...
Page 2
... ADA4860-1 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 Application Information................................................................ 14 REVISION HISTORY 4/06—Revision 0: Initial Version Power Supply Bypassing ............................................................ 14 Feedback Resistor Selection...................................................... 14 Driving Capacitive Loads.......................................................... 15 Power Down Pin......................................................................... 15 Video Amplifier ...
Page 3
... kΩ 0.9 to 4.1 L Sinking and sourcing 5 Enabled 4.5 POWER DOWN pin = + − − Rev Page ADA4860 499 Ω and F G Typ Max Unit 460 MHz 165 MHz 430 MHz 650 MHz 58 MHz 45 MHz 695 V/μ ...
Page 4
... ADA4860 ± 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% NOISE/DISTORTION PERFORMANCE Harmonic Distortion HD2/HD3 Input Voltage Noise Input Current Noise Differential Gain ...
Page 5
... JA 6-lead SOT-23 170 Maximum Power Dissipation The maximum safe power dissipation for the ADA4860-1 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 ...
Page 6
... ADA4860-1 TYPICAL PERFORMANCE CHARACTERISTICS R = 150 Ω and pF, unless otherwise noted ± + 0.2V p-p OUT 1 0 – + 499Ω – – 499Ω –3 – + 348Ω – +10 348Ω –6 ...
Page 7
... Figure 14. Small Signal Frequency Response for Various Gains –1 –2 –3 –4 –5 –6 1000 0.1 Figure 15. Large Signal Frequency Response for Various Gains Rev Page ADA4860 604Ω 499Ω ± ...
Page 8
... ADA4860-1 – ± 550Ω –50 F – p-p, HD3 OUT – p-p, HD2 OUT –80 V –90 V OUT –100 –110 1 10 FREQUENCY (MHz) Figure 16. Harmonic Distortion vs. Frequency – p-p, HD2 OUT 550Ω – p-p, HD3 OUT –60 – ...
Page 9
... F G TIME = 5ns/DIV –200 Figure 26. Small Signal Transient Response for Various Capacitor Loads 2 9pF 6pF L 2 4pF L 2.5 2 0.2V p-p OUT 499Ω TIME = 5ns/DIV 2.3 Figure 27. Small Signal Transient Response for Various Capacitor Loads Rev Page ADA4860-1 2.7 2.6 2.5 2.4 2.3 ...
Page 10
... ADA4860-1 1 ± +5V S 1.0 0.5 0 –0 –1 p-p OUT R = 550Ω F TIME = 5ns/DIV –1.5 Figure 28. Large Signal Transient Response for Various Supplies 1 9pF 6pF L 1 4pF L 0.5 0 –0 ± –1 p-p OUT R = 550Ω F TIME = 5ns/DIV –1.5 Figure 29. Large Signal Transient Response for Various Capacitor Loads 4 ...
Page 11
... V = ± p-p –0.75 OUT 499Ω TIME = 5ns/DIV –1.00 Rev Page ADA4860 ± 499Ω POSITIVE SLEW RATE NEGATIVE SLEW RATE 0.25 0.50 0.75 1.00 1.25 1.50 1.75 INPUT VOLTAGE (V p-p) Figure 37. Slew Rate vs. Input Voltage 499Ω ...
Page 12
... ADA4860 100 1k 10k 100k FREQUENCY (Hz) Figure 40. Input Voltage Noise vs. Frequency ± –10 –20 –30 –PSR –40 +PSR –50 –60 –70 0 FREQUENCY (MHz) Figure 41. Power Supply Rejection vs. Frequency 6 INPUT VOLTAGE × OUTPUT 2 VOLTAGE ...
Page 13
... Rev Page ADA4860 ± + –5 –4 –3 –2 – (V) CM Figure 49. Input V vs. Common-Mode Voltage SUPPLY VOLTAGE (V) Figure 50 ...
Page 14
... Generally μF tantalum capacitor located in close proximity to the ADA4860-1 is required to provide good decoupling for lower frequency signals. In addition, a 0.1 μF decoupling multilayer ceramic chip capacitor (MLCC) should be located as close to each of the power supply pins as is physically possible, no more than ⅛ ...
Page 15
... L VIDEO AMPLIFIER With low differential gain and phase errors and wide 0.1 dB flatness, the ADA4860 ideal solution for consumer and professional video applications. Figure 55 shows a typical video driver set for a noninverting gain of +2, where R The video amplifier input is terminated into a shunt 75 Ω resistor. ...
Page 16
... ADA4860-1 OPTIMIZING FLATNESS AND BANDWIDTH When using the ADA4860-1, a variety of circuit conditions and parasitics can affect peaking, gain flatness, and −3 dB bandwidth. This section discusses how the ADA4860-1 small signal responses can be dramatically altered with basic circuit changes and added stray capacitances, see the Layout and Circuit Board Parasitics section for more information ...
Page 17
... Added Summing Junction Capacitance In a second test, 5 capacitance was added directly at the output of the gain = +2 amplifier. Figure 61 shows the results. Extra output capacitive loading on the ADA4860-1 also causes bandwidth extensions, as seen in Figure 61. The effect on the gain = +2 circuit is more pronounced with lighter resistive loading (1 kΩ ...
Page 18
... ADA4860-1 OUTLINE DIMENSIONS INDICATOR 0.15 MAX ORDERING GUIDE Model Temperature Range 1 ADA4860-1YRJZ-RL –40°C to +105°C 1 ADA4860-1YRJZ-RL7 –40°C to +105°C 1 ADA4860-1YRJZ-R2 –40°C to +105° Pb-free part. 2.90 BSC 2.80 BSC 1.60 BSC PIN 1 0.95 BSC 1.90 1.30 BSC 1.15 0.90 1.45 MAX 0.22 0.08 0.50 SEATING 0.30 PLANE COMPLIANT TO JEDEC STANDARDS MO-178-AB Figure 62 ...
Page 19
... NOTES Rev Page ADA4860-1 ...
Page 20
... ADA4860-1 NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05709-0-4/06(0) Rev Page ...