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ADA4930-1YCPZ-R2 Arkusz danych(PDF) 1 Page - Analog Devices |
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ADA4930-1YCPZ-R2 Arkusz danych(HTML) 1 Page - Analog Devices |
1 / 25 page Ultralow Noise Drivers for Low Voltage ADCs Data Sheet ADA4930-1/ADA4930-2 Rev. B Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2010–2015 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES Low input voltage noise: 1.2 nV/√Hz Low common-mode output: 0.9 V on single supply Extremely low harmonic distortion −104 dBc HD2 at 10 MHz −79 dBc HD2 at 70 MHz −73 dBc HD2 at 100 MHz −101 dBc HD3 at 10 MHz −82 dBc HD3 at 70 MHz −75 dBc HD3 at 100 MHz High speed −3 dB bandwidth of 1.35 GHz, G = 1 Slew rate: 3400 V/μs, 25% to 75% 0.1 dB gain flatness to 380 MHz Fast overdrive recovery of 1.5 ns 0.5 mV typical offset voltage Externally adjustable gain Differential-to-differential or single-ended-to-differential operation Adjustable output common-mode voltage Single-supply operation: 3.3 V or 5 V APPLICATIONS ADC drivers Single-ended-to-differential converters IF and baseband gain blocks Differential buffers Line drivers GENERAL DESCRIPTION The ADA4930-1/ADA4930-2 are very low noise, low distortion, high speed differential amplifiers. They are an ideal choice for driving 1.8 V high performance ADCs with resolutions up to 14 bits from dc to 70 MHz. The adjustable output common mode allows the ADA4930-1/ADA4930-2 to match the input of the ADC. The internal common-mode feedback loop provides exceptional output balance, suppression of even-order harmonic distortion products, and dc level translation. With the ADA4930-1/ADA4930-2, differential gain configurations are easily realized with a simple external feedback network of four resistors determining the closed-loop gain of the amplifier. The ADA4930-1/ADA4930-2 are fabricated using Analog Devices, Inc., proprietary silicon-germanium (SiGe), comple- mentary bipolar process, enabling them to achieve very low levels of distortion with an input voltage noise of only 1.2 nV/√Hz. FUNCTIONAL BLOCK DIAGRAMS 1 –FB 2 +IN 3 –IN 4 +FB 11 –OUT 12 PD 10 +OUT 9VOCM ADA4930-1 Figure 1. ADA4930-2 1 –IN1 2 +FB1 3 +VS1 4 +VS1 5 –FB2 6 +IN2 15 –VS2 16 –VS2 17 VOCM1 18 +OUT1 14 PD2 13 –OUT2 Figure 2. 0 1 10 100 10 100 1k 10k 100k 1M 10M 100M FREQUENCY (Hz) Figure 3. Voltage Noise Spectral Density The low dc offset and excellent dynamic performance of the 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, 3 mm × 3 mm 16-lead LFCSP, and the ADA4930-2 is available in a Pb-free, 4 mm × 4 mm 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 −40°C to +105°C temperature range, and the ADA4930-2 is specified to operate over the −40°C to +105°C temperature range for 3.3 V or 5 V supply voltages. |
Podobny numer części - ADA4930-1YCPZ-R2 |
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Podobny opis - ADA4930-1YCPZ-R2 |
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