ADA4930-2 AD [Analog Devices], ADA4930-2 Datasheet
ADA4930-2
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ADA4930-2 Summary of contents
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... The ADA4930-1 is available in a Pb-free × 16-lead LFCSP, and the ADA4930-2 is available in a Pb-free × 24-lead LFCSP. The pinout has been optimized to facilitate printed circuit board (PCB) layout and minimize distortion. The ADA4930-1 is specified to operate over the − ...
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... ADA4930-1/ADA4930-2 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagrams ............................................................. 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 3.3 V Operation ............................................................................ 3 3 Performance ............................................... 4 OCM O, cm 3.3 V General Performance ......................................................... Operation ............................................................................... Performance .................................................. 6 OCM General Performance ............................................................ 6 Absolute Maximum Ratings ............................................................ 7 Thermal Resistance ...................................................................... 7 Maximum Power Dissipation ..................................................... 7 ESD Caution ...
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... V p- 100 MHz p-p/tone 70.05 MHz ± 0.05 MHz p-p/tone 140.05 MHz ± 0.05 MHz 100 kHz f = 100 kHz f = 100 MHz, ADA4930- 200 Ω open circuit IP IN OCM MIN MAX ...
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... ADA4930-1/ADA4930-2 3 PERFORMANCE OCM O, CM Table 2. Parameter V DYNAMIC PERFORMANCE OCM −3 dB Bandwidth Slew Rate V INPUT CHARACTERISTICS OCM Input Voltage Range Input Resistance Input Offset Voltage Input Voltage Noise Gain CMRR 3.3 V GENERAL PERFORMANCE Table 3. Parameter POWER SUPPLY Operating Range Quiescent Current per Amplifier +PSRR − ...
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... V p- 100 MHz p-p/tone 70.05 MHz ± 0.05 MHz p-p/tone 140.05 MHz ± 0.05 MHz 100 kHz f = 100 kHz f = 100 MHz, ADA4930- 200 Ω open circuit IP IN OCM MIN MAX ...
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... ADA4930-1/ADA4930 PERFORMANCE OCM O, CM Table 5. Parameter V DYNAMIC PERFORMANCE OCM −3 dB Bandwidth Slew Rate V INPUT CHARACTERISTICS OCM Input Voltage Range Input Resistance Input Offset Voltage Input Voltage Noise Gain CMRR 5 V GENERAL PERFORMANCE Table 6. Parameter POWER SUPPLY Operating Range ...
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... LFCSP (Exposed Pad) 24-Lead LFCSP (Exposed Pad) MAXIMUM POWER DISSIPATION The maximum safe power dissipation in the ADA4930-1/ADA4930-2 packages is limited by the associated rise in junction temperature (T on the die. At approximately 150°C, which is the glass transition temperature, the plastic changes its properties. Even temporarily ...
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... S EPAD Exposed Paddle. The exposed pad is not electrically connected to the device typically soldered to ground or a power plane on the PCB that is thermally conductive –OUT 10 +OUT 9 V OCM Table 10. ADA4930-2 Pin Function Descriptions Pin No ...
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... Figure 9. Small Signal Frequency Response −40° 25°C, and 0 kΩ, unless otherwise noted 10G 1G 10G 1G 10G = 105°C A Rev Page ADA4930-1/ADA4930 p – 300Ω 150Ω – 60Ω G –9 – ...
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... R = 200 Ω and kΩ ADA4930-2, 200Ω, OUT 1 ADA4930-2, 200Ω, OUT 2 ADA4930-1, 200Ω ADA4930-1, 1kΩ ADA4930-2, 1kΩ, OUT 1 ADA4930-2, 1kΩ, OUT 2 1M 10M 100M FREQUENCY (Hz) Figure 17. Small Signal 0.1 dB Flatness vs. Frequency for R = 200 Ω and kΩ L ...
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... p-p OUT = 1V p-p 0 OUT = 2V p-p OUT = 2V p-p OUT –20 –40 –60 –80 –100 –120 –140 100M 200M 69.8 Rev Page ADA4930-1/ADA4930-2 HD2, 3.3V HD3, 3.3V HD2, 5.0V HD3, 5.0V 1.5 2.0 2.5 3 p-p) OUT 10MHz, HD2 10MHz, HD3 70MHz, HD2 70MHz, HD3 1.0 1.5 2.0 2.5 V ABOVE – V (V) OCM S Figure 23. Harmonic Distortion vs. V ...
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... ADA4930-1/ADA4930-2 –40 –45 –50 –55 –60 –65 –70 –75 100k 1M 10M FREQUENCY (Hz) Figure 25. CMRR vs. Frequency, R –60 CHANNEL 1 TO CHANNEL 2 –70 CHANNEL 2 TO CHANNEL 1 –80 –90 –100 –110 –120 –130 –140 1M 10M FREQUENCY (Hz) Figure 26. Crosstalk vs. Frequency S11 –10 S22 –20 – ...
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... Rev Page ADA4930-1/ADA4930-2 100 1k 10k 100k 1M 10M FREQUENCY (Hz) Figure 34. Voltage Noise Spectral Density TIME (ns) Figure 35. Small Signal V Pulse Response OCM TIME (ns) Figure 36. Large Signal V ...
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... ADA4930-1/ADA4930-2 2.25 2.00 1.75 1.50 1.25 PD 1.00 +OUT –OUT 0.75 0.50 0.25 0 –0.25 0 100 200 300 400 500 600 TIME (ns) Figure 37. PD Response vs. Time 2.5 2.0 1.5 1.0 0.5 –0.5 –1.0 –1.5 –2.0 –2.5 700 800 900 1000 Rev Page × TIME (ns) Figure 38. V Overdrive Recovery ...
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... Figure 40. Test Circuit for Output Balance 301Ω 0.1µF 301Ω FILTER V ADA4930 57.6Ω OCM 0.1µF 301Ω 0.9V 26.7Ω 301Ω 0.9V Figure 41. Test Circuit for Distortion Measurements Rev Page ADA4930-1/ADA4930-2 1kΩ 50Ω 50Ω 412Ω FILTER 261Ω 0.9V 412Ω ...
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... ADA4930-1/ADA4930-2 OPERATIONAL DESCRIPTION DEFINITION OF TERMS – +IN –OUT + ADA4930 OCM –D IN –IN +OUT +FB Figure 42. Circuit Definitions Differential Voltage Differential voltage refers to the difference between two node voltages. For example, the output differential voltage (or, equivalently, output differential-mode voltage) is defined as ...
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... R are equal. ESTIMATING THE OUTPUT NOISE VOLTAGE The differential output noise of the ADA4930-1/ADA4930-2 can be estimated using the noise model in Figure 43. The input-referred noise voltage density, v currents, i Similar to the case of conventional op amps, the output noise voltage densities can be estimated by multiplying the input- referred terms at +IN and − ...
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... INPUT COMMON-MODE VOLTAGE RANGE The input common-mode range at the summing nodes of the input (including OCM ADA4930-1/ADA4930-2 is specified input To avoid nonlinearities, the voltage swing at the +IN and −IN OCM terminals must be confined to these ranges. ...
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... MINIMUM R VALUE G Due to the wide bandwidth of the ADA4930-1/ADA4930-2, the value of R must be greater than or equal to 301 Ω at unity gain G to provide sufficient damping in the amplifier front end. In the terminated case, R includes the Thevenin resistance of the G source and load terminations. SETTING THE OUTPUT COMMON-MODE VOLTAGE ...
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... ADA4930-1/ADA4930-2 Terminating a Single-Ended Input This section describes the five steps that properly terminate a single-ended input to the ADA4930-1/ADA4930-2. Assume a system gain 301 Ω, an input source with an open circuit output voltage p-p, and a source resistance of 50 Ω. Figure 46 shows this circuit. ...
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... V − 301 142 28.11 301 = + − 301 142 28.11 Recognize that while the ADA4930-1/ADA4930 its linear operating region, V and both equations in Step 2 give equal results OUT, dm 1.990V p-p 5. VON OUT, dm 1.99V p-p VOP 2V p − ...
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... ADA4930-1/ADA4930-2 Input Common-Mode Adjustment with Resistors The circuit shown in Figure 54 shows an alternate method to bias the amplifier inputs, eliminating the dc source. 3. 301Ω 50Ω 301Ω SOURCE V ADA4930 OCM 2V p 301Ω –V ...
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... LAYOUT, GROUNDING, AND BYPASSING The ADA4930-1/ADA4930-2 are high speed devices. Realizing their superior performance requires attention to the details of high speed PCB design. The first requirement is to use a multilayer PCB with solid ground and power planes that cover as much of the board area as possible. ...
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... The V OCM sets the output common mode of the ADA4930 The 739 Ω resistors between each input and the 3.3 V supply provide the necessary dc bias to guarantee compliance with the input common-mode range of the ADA4930-2. ...
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... Body, Very Thin Quad (CP-24-13) Dimensions shown in millimeters Package Description Package Option 16-Lead LFCSP_VQ CP-16-2 16-Lead LFCSP_VQ CP-16-2 16-Lead LFCSP_VQ CP-16-2 Evaluation Board 24-Lead LFCSP_VQ CP-24-13 24-Lead LFCSP_VQ CP-24-13 24-Lead LFCSP_VQ CP-24-13 Evaluation Board Rev Page ADA4930-1/ADA4930-2 0.50 0.40 0.30 PIN 1 INDICATOR * 1. 1.30 SQ 1.15 PAD 4 5 0.25 MIN 1 24 2.44 EXPOSED PAD 2 ...
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... ADA4930-1/ADA4930-2 NOTES Rev Page ...
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... NOTES Rev Page ADA4930-1/ADA4930-2 ...
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... ADA4930-1/ADA4930-2 NOTES ©2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D09209-0-10/10(A) Rev Page ...