ADA4932-2 Analog Devices, ADA4932-2 Datasheet
ADA4932-2
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ADA4932-2 Summary of contents
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... 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 −40°C to +105°C temperature range; both operate on supplies between +3 V and ±5 V. ...
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... ADA4932-1/ADA4932-2 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 www.datasheet4u.com 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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... 2.0 V p-p OUT 2 205 Ω OUT 2.0 V p-p, ADA4932-1, R OUT 2.0 V p-p, ADA4932-2, R OUT p-p, 25% to 75% OUT step OUT ramp See Figure 54 for distortion test circuit p-p, 1 MHz OUT p-p, 10 MHz ...
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... ADA4932-1/ADA4932 Performance OCM OUT, cm Table 2. Parameter V DYNAMIC PERFORMANCE OCM −3 dB Small Signal Bandwidth www.datasheet4u.com −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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... 2.0 V p-p OUT 2 205 Ω OUT 2.0 V p-p, ADA4932-1, R OUT 2.0 V p-p, ADA4932-2, R OUT p-p, 25% to 75% OUT step OUT 2.5 V ramp See Figure 54 for distortion test circuit p-p, 1 MHz OUT p-p, 10 MHz ...
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... ADA4932-1/ADA4932 Performance OCM OUT, cm Table 5. Parameter V DYNAMIC PERFORMANCE OCM −3 dB Small Signal Bandwidth www.datasheet4u.com −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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... Pin No. Mnemonic 1 −FB 2 +IN 3 − OCM 10 +OUT 11 −OUT − (EPAD) Exposed Paddle (EPAD) Table 10. ADA4932-2 Pin Function Descriptions Pin No. Mnemonic 1 −IN1 2 +FB1 −FB2 6 +IN2 7 −IN2 8 +FB2 OCM2 12 +OUT2 13 −OUT2 ...
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... 205Ω 10G and ± ±2.5V S 100M 1G Rev Page ADA4932-1/ADA4932 kΩ, unless otherwise noted p 499Ω 499Ω, 249Ω –1 –2 –3 –4 –5 –6 –7 – ...
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... ADA4932-1/ADA4932 100mV p-p OUT – –40°C A –2 www.datasheet4u.com T = +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 – ...
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... Figure 22. Large Signal Frequency Response at Various Capacitive Loads 0 p-p OUT, dm 0.4 0.3 0.2 0.1 0 –0.1 ADA4932- 1kΩ L –0.2 ADA4932- 200Ω L ADA4932- 1kΩ L –0.3 ADA4932- 200Ω L ADA4932- 1kΩ L –0.4 ADA4932- 200Ω L –0.5 1M 10M 100M FREQUENCY (Hz) Figure 23 ...
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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 www.datasheet4u.com –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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... FREQUENCY (Hz) Figure 33. CMRR vs. Frequency 10M 100M Figure 34. Harmonic Distortion vs. Frequency at Various R OUT, dm –100 –110 10M 100M 100M 1G Rev Page ADA4932-1/ADA4932-2 – p-p OUT, dm –50 HD2 499Ω –60 HD3 499Ω HD2 200Ω ...
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... ADA4932-1/ADA4932-2 – 200Ω –20 –30 www.datasheet4u.com –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 ...
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... Figure 44. Small Signal Pulse Response for Various Capacitive Loads 0.75 0.50 0.25 0 –0.25 –0.50 –0. TIME (ns) Figure 45. V Small Signal Pulse Response OCM Rev Page ADA4932-1/ADA4932-2 1.5 1.0 0.5 0 –0.5 –1.0 –1 TIME (ns) Figure 46. Large Signal Pulse Response 1.5 1.0 0 0pF L –0 0.9pF 1.8pF L – ...
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... 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 1.2 0.5 0.4 1.0 0.3 0.8 0.2 0.1 0.6 0 0.4 –0.1 –0.2 0.2 –0.3 –0.4 –0.2 –0 100M 1G Rev Page ...
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... LOW-PASS FILTER V ADA4932-x 53.6Ω OCM 499Ω 25.5Ω 0.1µF –5V 499Ω Figure 54. Test Circuit for Distortion Measurements Rev Page ADA4932-1/ADA4932-2 499Ω +5V ADA4932-x 1kΩ –5V 499Ω NETWORK ANALYZER INPUT 49.9Ω 50Ω +5V NETWORK ANALYZER INPUT – ...
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... ADA4932-1/ADA4932-2 TERMINOLOGY – +IN –OUT + ADA4932-x OCM www.datasheet4u.com –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 www.datasheet4u.com 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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... V is 0.67. If OCM OUT, dm Rev Page ADA4932-1/ADA4932-2 Mismatched feedback networks also result in a degradation of the ability of the circuit to reject input common-mode signals, much the same as for a four-resistor difference amplifier made from a conventional op amp practical summarization of the above issues, resistors of 1% ...
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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 www.datasheet4u.com input to the ADA4932-x with a gain 499 Ω ...
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... 511Ω Rev Page ADA4932-1/ADA4932-2 INPUT AND OUTPUT CAPACITIVE AC COUPLING While the ADA4932-x is best suited to dc-coupled applications nonetheless possible to use it in ac-coupled circuits. Input ac coupling capacitors can be inserted between the source and R . This ac coupling blocks the flow of the dc common-mode ...
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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. www.datasheet4u.com The first requirement is a solid ground plane that covers as much of the board area around the ADA4932-x as possible ...
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... OCM ADA4932-1 10kΩ 0.1µF 499Ω 1% 25.5Ω 511Ω Figure 67. ADA4932-1 Driving an AD9245 ADC with DC-Coupled Input and Output Rev Page ADA4932-1/ADA4932-2 input is bypassed for noise reduction, and set externally OCM p-p OUT 1.65V OUT, cm 0.1µF 33Ω ...
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... 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. 3.00 0.60 MAX BSC SQ 0.45 2.75 TOP BSC SQ VIEW 0.50 BSC 1.50 REF 0.80 MAX 12° ...
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... NOTES www.datasheet4u.com Rev Page ADA4932-1/ADA4932-2 ...
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... ADA4932-1/ADA4932-2 NOTES www.datasheet4u.com ©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 ...