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OP249GSZ-REEL bảng dữ liệu(PDF) 1 Page - Analog Devices |
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OP249GSZ-REEL bảng dữ liệu(HTML) 1 Page - Analog Devices |
1 / 20 page Precision JFET, High Speed, Dual Operational Amplifier Data Sheet OP249 Rev. H Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother 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 ©1989–2013 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES Fast slew rate: 22 V/µs typical Settling time (0.01%): 1.2 µs maximum Offset voltage: 200 µV typical High open-loop gain: 1000 V/mV minimum Low total harmonic distortion: 0.002% typical APPLICATIONS Output amplifier for fast DACs Signal processing Instrumentation amplifiers Fast sample-and-holds Active filters Low distortion audio amplifiers Input buffer for ADCs Servo controllers PIN CONFIGURATIONS OUT A 1 –IN A 2 +IN A 3 V– 4 V+ 8 OUT B 7 –IN B 6 +IN B 5 OP249 A B Figure 1. 8-Lead CERDIP (Q-8) and 8-Lead PDIP (N-8) +IN A 1 V– 2 +IN B 3 –IN B 4 –IN A 8 OUT A 7 V+ 6 OUT B 5 A B OP249 Figure 2. 8-Lead SOIC (R-8) GENERAL DESCRIPTION The OP249 is a high speed, precision dual JFET op amp, similar to the popular single op amp. The OP249 outperforms available dual amplifiers by providing superior speed with excellent dc performance. Ultrahigh open-loop gain (1 kV/mV minimum), low offset voltage, and superb gain linearity makes the OP249 the industry’s first true precision, dual high speed amplifier. With a slew rate of 22 V/µs typical and a fast settling time of less than 1.2 µs maximum to 0.01%, the OP249 is an ideal choice for high speed bipolar DAC and ADC applications. The excellent dc performance of the OP249 allows the full accuracy of high resolution CMOS DACs to be realized. Symmetrical slew rate, even when driving large load, such as, 600 Ω or 200 pF of capacitance and ultralow distortion, make the OP249 ideal for professional audio applications, active filters, high speed integrators, servo systems, and buffer amplifiers. 10 0% 100 90 870ns 500ns 10mV 0.01 0.001 20 100 1k 10k 20k TA = 25°C VS = ±15V VO = 10V p-p RL = 10kΩ AV = 1 10 0% 100 90 5V 1µs Figure 3. Fast Settling (0.01%) Figure 4. Low Distortion, AV = 1, RL = 10 kΩ Figure 5. Excellent Output Drive, RL = 600 Ω |
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