ADA4932-1 AD [Analog Devices], ADA4932-1 Datasheet
ADA4932-1
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ADA4932-1 Summary of contents
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... FREQUENCY (Hz) Figure 3. Harmonic Distortion vs. Frequency at Various Gains The ADA4932-x is available in a Pb-free × 16-lead LFCSP (ADA4932-1, single Pb-free × 24-lead LFCSP (ADA4932-2, dual). The pinout has been optimized to facilitate PCB layout and minimize distortion. The ADA4932-1 and the ADA4932-2 are specified to operate over the − ...
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... ADA4932-1/ADA4932-2 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagrams ............................................................. 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 ±5 V Operation ............................................................................. Operation ............................................................................... 5 Absolute Maximum Ratings ............................................................ 7 Thermal Resistance ...................................................................... 7 Maximum Power Dissipation ..................................................... 7 ESD Caution .................................................................................. 7 Pin Configurations and Function Descriptions ........................... 8 Typical Performance Characteristics ............................................. 9 Test Circuits ..................................................................................... 17 Terminology .................................................................................... 18 REVISION HISTORY 10/08— ...
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... V = 0 205 Ω OUT 2.0 V p-p OUT 2 205 Ω OUT 2.0 V p-p, ADA4932- 200 Ω OUT 2.0 V p-p, ADA4932- 200 Ω OUT p-p, 25% to 75% OUT step OUT ramp See Figure 54 for distortion test circuit ...
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... ADA4932-1/ADA4932 Performance OCM OUT, cm Table 2. Parameter V DYNAMIC PERFORMANCE OCM −3 dB Small Signal Bandwidth −3 dB Large Signal Bandwidth Slew Rate Input Voltage Noise (RTI) V INPUT CHARACTERISTICS OCM Input Voltage Range Input Resistance Input Offset Voltage V CMRR OCM Gain General Performance Table 3 ...
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... V = 0 205 Ω OUT 2.0 V p-p OUT 2 205 Ω OUT 2.0 V p-p, ADA4932- 200 Ω OUT 2.0 V p-p, ADA4932- 200 Ω OUT p-p, 25% to 75% OUT step OUT 2.5 V ramp See Figure 54 for distortion test circuit ...
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... ADA4932-1/ADA4932 Performance OCM OUT, cm Table 5. Parameter V DYNAMIC PERFORMANCE OCM −3 dB Small Signal Bandwidth −3 dB Large Signal Bandwidth Slew Rate Input Voltage Noise (RTI) V INPUT CHARACTERISTICS OCM Input Voltage Range Input Resistance Input Offset Voltage V CMRR OCM Gain General Performance Table 6 ...
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... EIA/JESD 51-7. Table 8. Thermal Resistance Package Type ADA4932-1, 16-Lead LFCSP (Exposed Pad) ADA4932-2, 24-Lead LFCSP (Exposed Pad) MAXIMUM POWER DISSIPATION The maximum safe power dissipation in the ADA4932-x package is limited by the associated rise in junction temperature ( the die. At approximately 150° ...
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... TOP VIEW 10 +OUT (Not to Scale) + OCM NOTES 1. SOLDER EXPOSED PADDLE ON BACK OF PACKAGE TO GROUND PLANE POWER PLANE. Figure 5. ADA4932-1 Pin Configuration Table 9. ADA4932-1 Pin Function Descriptions Pin No. Mnemonic 1 −FB 2 +IN 3 − ...
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... 205Ω 10G and R Figure 11. Large Signal Frequency Response for Various 100M 1G Rev Page ADA4932-1/ADA4932 kΩ, unless otherwise noted p 499Ω 499Ω, 249Ω –1 –2 – ...
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... ADA4932-1/ADA4932 100mV p-p OUT – –40°C A – +25° +105°C –3 A –4 –5 –6 –7 –8 1M 10M FREQUENCY (Hz) Figure 13. Small Signal Frequency Response for Various Temperatures 100mV p-p OUT –1 –2 –3 –4 –5 –6 – ...
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... Rev Page ADA4932-1/ADA4932 p-p OUT 0pF 0.9pF 1.8pF L 100M FREQUENCY (Hz p-p OUT, dm ADA4932- 1kΩ L ADA4932- 200Ω L ADA4932- 1kΩ L ADA4932- 200Ω L ADA4932- 1kΩ L ADA4932- 200Ω L 10M 100M ...
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... ADA4932-1/ADA4932-2 – p-p OUT, dm –50 HD2 1kΩ L –60 HD3 1kΩ L HD2 200Ω L –70 HD3 200Ω L –80 –90 –100 –110 –120 –130 –140 100k 1M FREQUENCY (Hz) Figure 25. Harmonic Distortion vs. Frequency at Various Loads – p-p OUT –50 OCM – ...
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... Figure 35. 30 MHz Intermodulation Distortion 200Ω –20 –40 –60 –80 –PSRR –100 +PSRR –120 –140 1G 1M Rev Page ADA4932-1/ADA4932 p 499Ω 499Ω 200Ω 200Ω 10M 100M FREQUENCY (Hz) ...
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... ADA4932-1/ADA4932-2 – 200Ω –20 –30 –40 –50 –60 –70 1M 10M FREQUENCY (Hz) Figure 37. Output Balance vs. Frequency 0 INPUT SINGLE-ENDED, 50Ω LOAD TERMINATION OUTPUT DIFFERENTIAL, 100Ω SOURCE TERMINATION S11: COMMON-MODE-TO-COMMON-MODE –10 S22: DIFFERENTIAL-TO-DIFFERENTIAL –20 – 200Ω L –40 – ...
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... Figure 47. Large Signal Pulse Response for Various Capacitive Loads 1.5 1.0 0.5 0 –0.5 –1.0 –1 Figure 48. V Rev Page ADA4932-1/ADA4932 TIME (ns) Figure 46. Large Signal Pulse Response C = 0pF 0.9pF 1.8pF TIME (ns) ...
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... ADA4932-1/ADA4932-2 2.0 1.6 1.2 INPUT 0.8 0.4 OUTPUT 0 –0.4 ERROR –0.8 –1.2 –1.6 –2 TIME (ns) Figure 49. Settling Time p-p OUT 200Ω – CHANNEL 1 TO CHANNEL 2 –40 CHANNEL 2 TO CHANNEL 1 –60 –80 –100 –120 –140 –160 1M 10M FREQUENCY (Hz) Figure 50. Crosstalk vs. Frequency, ADA4932-2 1 ...
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... FILTER V ADA4932-x 53.6Ω OCM 0.1µF 499Ω 25.5Ω 0.1µF –5V 499Ω Figure 54. Test Circuit for Distortion Measurements Rev Page ADA4932-1/ADA4932-2 1kΩ NETWORK ANALYZER INPUT 49.9Ω 50Ω NETWORK ANALYZER INPUT 49.9Ω 50Ω 200Ω 50Ω 442Ω ...
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... ADA4932-1/ADA4932-2 TERMINOLOGY – +IN –OUT + ADA4932-x OCM –D IN –IN +OUT +FB Figure 55. Signal and 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 V − ...
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... The internal common-mode feedback loop produces outputs that are highly balanced over a wide frequency range without requiring tightly matched external components. This results in differential outputs that are very close to the ideal of being identical in amplitude and are exactly 180° apart in phase. Rev Page ADA4932-1/ADA4932-2 ...
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... ADA4932-1/ADA4932-2 APPLICATIONS INFORMATION ANALYZING AN APPLICATION CIRCUIT The ADA4932-x uses high open-loop gain and negative feedback to force its differential and common-mode output voltages in such a way as to minimize the differential and common-mode error voltages. The differential error voltage is defined as the voltage between the differential inputs labeled +IN and −IN (see Figure 55) ...
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... R and R F Rev Page ADA4932-1/ADA4932-2 input, negligible V noise contribution, OCM OCM ) between the inputs IN, dm ...
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... ADA4932-1/ADA4932-2 input terminals due to negative voltage feedback and is in phase with the input signal, thus reducing the effective voltage across R in the upper loop and partially bootstrapping R G Terminating a Single-Ended Input This section describes how to properly terminate a single-ended input to the ADA4932-x with a gain 499 Ω ...
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... The input impedance of the V ADA4932-x devices share one ADC reference output, a buffer may be necessary to drive the parallel inputs. Rev Page ADA4932-1/ADA4932-2 pin of the ADA4932-x is internally biased with a vol- OCM ) + (−V )]/2. Because of this internal divider, the ...
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... ADA4932-1/ADA4932-2 LAYOUT, GROUNDING, AND BYPASSING As a high speed device, the ADA4932-x is sensitive to the PCB environment in which it operates. Realizing its superior performance requires attention to the details of high speed PCB design. The first requirement is a solid ground plane that covers as much of the board area around the ADA4932-x as possible. However, ...
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... ADA4932-1 eliminates the need for a transformer to drive the ADC and performs a single-ended-to-differential conversion and buffering of the driving signal. The ADA4932-1 is configured with a single 3.3 V supply and a gain of 1 for a single-ended input to differential output. The 53.6 Ω termination resistor, in parallel with the single-ended input impedance of approximately 665 Ω ...
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... SEATING PLANE ORDERING GUIDE Model Temperature Range ADA4932-1YCPZ-R2 1 −40°C to +105°C 1 ADA4932-1YCPZ-RL −40°C to +105°C ADA4932-1YCPZ-R7 1 −40°C to +105°C 1 ADA4932-2YCPZ-R2 −40°C to +105°C ADA4932-2YCPZ-RL 1 −40°C to +105°C 1 ADA4932-2YCPZ-R7 −40°C to +105° RoHS Compliant Part. ...
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... NOTES Rev Page ADA4932-1/ADA4932-2 ...
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... ADA4932-1/ADA4932-2 NOTES ©2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D07752-0-10/08(0) Rev Page ...