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Podzespoły  AD8209A - wysokonapięciowy, precyzyjny wzmacniacz różnicowy 


Układ AD8209A to pojedynczy wzmacniacz różnicowy, oferowany przez Analog Devices, idealny do zastosowania we wzmacniaczach różnicowych i filtrach dolnoprzepustowych pracujących w obecności dużego napięcia współbieżnego, o zakresie -2?+50 V, przy zasilaniu napięciem asymetrycznym +5 V.

Dodatkowo ma certyfikat AEC Q100, co umożliwia jego użycie w przemyśle motoryzacyjnym. Wzmacniacz ma rozszerzoną odporność na przepięcia, w tym podwyższone zabezpieczenie ESD i odporność na zaburzenia elektromagnetyczne EMI.

Wzmacniacz AD8209A nadaje się do zastosowania w aplikacjach pracujących przy napięciu wejściowym AC lub DC. Typowy offset oraz dryft wzmocnienia układu w obudowie MSOP są mniejsze niż, odpowiednio, 5 µV/°C i -5 ppm/°C. Układ ma CMRR lepszy niż 80 dB w zakresie DC…10 kHz. W jego obudowie zamontowano rezystor 100 kΩ, który może być użyty w filtrach dolnoprzepustowych lub wzmacniaczach, ustalając wzmocnienie na 14 V/V. Napięcie zasilania układu wynosi -2…+50 V. Układ jest odporny na krótkotrwałe przepięcia występujące na liniach zasilających z zakresu -20…+70 V.

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