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AD847AR 데이터시트(PDF) 11 Page - Analog Devices |
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AD847AR 데이터시트(HTML) 11 Page - Analog Devices |
11 / 12 page AD847 REV. F –11– A High Speed, Three Op-Amp In-Amp The circuit of Figure 26 lends itself well to CCD imaging and other video speed applications. It uses two high speed CB pro- cess op-amps: Amplifier A3, the output amplifier, is an AD847. The input amplifier (A1 and A2) is an AD827, which is a dual version of the AD847. This circuit has the optional flexibility of both dc and ac trims for common-mode rejection, plus the abil- ity to adjust for minimum settling time. PIN 7 AD847, PIN 8 AD827 1 µF 1 µF 0.1 µF 0.1 µF 0.1 µF 0.1 µF EACH AMPLIFIER +15V –15V COMM +VS –VS 10 µF 10 µF PIN 4 AD847 & AD827 AD847 2–8pF SETTLING TIME AC CMR ADJUST 2k Ω 1.87k Ω 2k Ω 2k Ω 5pF R G VOUT 200 Ω DC CMR ADJUST 2k Ω R L CIRCUIT GAIN = + 1 2000 Ω G R IN +V 2 3 1 A1 1/2 AD827 1k Ω –V IN 6 5 7 A2 1/2 AD827 1k Ω 2 3 6 A3 100Hz 1kHz 10kHz 100kHz 1MHz 88.3dB 87.4dB 86.2dB 67.4dB 47.1dB INPUT FREQUENCY CMRR THD + NOISE BELOW INPUT LEVEL @ 10kHz 1 2 10 100 OPEN 2k Ω 226 Ω 20 Ω 2–8 2–8 2–8 2–8 16.1MHz 14.7MHz 4.5MHz 660kHz 200ns 200ns 370ns 2.5 µs 82dB 82dB 81dB 71dB GAIN R G SMALL SIGNAL BANDWIDTH SETTLING TIME TO 0.1% C (pF) ADJ BANDWIDTH, SETTLING TIME AND TOTAL HARMONIC DISTORTION VS. GAIN Figure 26. A High Speed In-Amp Circuit for Data Acquisition |
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유사한 설명 - AD847AR |
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