ada4930-1 Analog Devices, Inc., ada4930-1 Datasheet
ada4930-1
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ada4930-1 Summary of contents
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... ADA4930-1/ADA4930-2 make them well suited for a wide variety of data acquisition and signal processing applications. 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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... R = open circuit ICM Each single-ended output kΩ Each single-ended output MHz, TDH ≤ 60 dBc MHz Rev Page ADA4930-1/ADA4930-2 = 25° MIN Min Typ Max Unit 1430 MHz 887 MHz 380 MHz ...
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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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... kΩ open circuit ICM Each single-ended output kΩ Each single-ended output MHz, TDH ≤ 60 dBc MHz Rev Page ADA4930-1/ADA4930-2 = 25°C, A Min Typ Max Unit 1350 MHz 937 MHz 369 MHz 90 MHz 3400 V/μ ...
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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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... NOTES 1. 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. Figure 5. ADA4930-1 Pin Configuration Table 9. ADA4930-1 Pin Function Descriptions Pin No. Mnemonic Description 1 −FB Negative Output for Feedback Component Connection. ...
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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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... Figure 16. Large Signal Frequency Response for 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 ...
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... HD2 3.3V S HD3 3.3V S –85 HD2 5.0V S HD3 5.0V S –90 –95 –100 –105 –110 1M 10M FREQUENCY (Hz) Figure 19. ADA4930-1 Harmonic Distortion vs. Frequency 3.3 V and –40 10MHz, HD2 10MHz, HD3 –50 70MHz, HD2 70MHz, HD3 –60 –70 –80 –90 –100 –110 –120 0.4 0.5 ...
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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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... Signal routing should be short and direct to avoid such parasitic effects. Provide symmetrical layout for complementary signals to maximize balanced performance. Figure 56. ADA4930-1 Ground and Power Plane Voiding in the Vicinity of R and R F TOP METAL ...
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... Note that a dc bias must be added to the signal source and its Thevenin equivalent to the gain resistor on the inverting side to ensure that the inputs of the ADA4930-1 are kept at or above the specified minimum input common-mode voltage at all times. The 0 bias at the signal source and the 0.314 V dc bias on the gain resistor at the inverting input set the inputs of the ADA4930 ...
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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 ...