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george_21_2005

nevoie urgent de config pinilor la opa 2134

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vreau sa imi fac un preampli cu opa 2134,care sa aiba o amplificare de maxim 10* dar nu stiu configuratia pinilor.daca ma poate ajuta cineva....pls

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Guest Vasile

Ma fratilor dar voi nu ati auzit de Gooogle ? Stiu ca lenea e mare dar nici asa...

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ms mult dar intre timp il gasisem si eu.cer si eu o parere.care e mai bun?opa2604?sau opa2134?am cautat pe net si am gasit un site online cu piese electronice iar opa2604 e ceva mai scum aprox 20 lei iar opa 2134 aprox 8 lei.pe care mi-l recomandati?logic ar fi ca cel mai scump sa fie si cel mai bun dar nu e intotdeauna asa.thx

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Aici este datasheet-ul cu toate informatiile:

http://focus.ti.com/lit/ds/symlink/opa2134.pdf

Pentru comparatii poti folosi cu incredere pe nea' gogu, sunt o gramada de site-uri care au informatii despre operationalele folosite in audio.

Pentru o comparatie pertinenta ar trebui sa construiesti cate un preamplificator cu fiecare si sa faci comparatia dupa care pastrezi modelul care iti place.

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Mi-am comandat si eu 2 bucati dinastea opa2134, cu unu imi fac amplif portabil de casti, cu 2 baterii de 9V inseriate si facute sursa diferentiala cu 2 condensatori si 2 rezistente, si cu celalalt imi fac amplif de casti de camera, la care la iesirea din operational mai adaog un mosfet in clasa A...

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