Question
Download Solution PDFएक आदर्श OP-Amp चे सामान्य मोड अस्वीकार गुणोत्तर (CMRR) ________ आहे.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCMRR (सामान्य मोड अस्वीकार गुणोत्तर) हे विभेदन-मोड विद्युतदाब वाढ (Ad) आणि सामान्य मोड विद्युतदाब वाढ (Ac) चे गुणोत्तर म्हणून परिभाषित केले आहे.
गणितीयदृष्ट्या, हे असे व्यक्त केले जाते:
\(CMRR = \frac{A_d}{A_c}\)
Ad = विभेदन वाढ
Ac = सामान्य मोड वाढ
तद्वतच, Op-Amp चा सामान्य मोड वाढ शून्य असली पाहिजे, म्हणजे प्रतिलोमी आणि अप्रतिलोमी अग्र दोन्हीवर सामान्य आदानसाठी शून्य प्रदान करणे आवश्यक आहे. ∴ आदर्श Op-Amp चे CMRR अनंत आहे.
op-amp ची आदर्श वैशिष्ट्ये:
|
वैशिष्ट्ये निर्देशांक |
आदर्श मूल्य |
व्यावहारिक मूल्य |
|
विद्युतदाब वाढ (Av) |
∞ |
≈ 106 |
|
आदान प्रतिरोध (Ri) |
∞ |
≈ 1 MΩ |
|
प्रदान प्रतिरोध (R0) |
0 |
≈ 10 Ω to 100 Ω |
|
पट्टरूंदी (B.W) |
∞ |
≈ 1 MHz |
|
सामान्य मोड अस्वीकार गुणोत्तर (CMRR) |
∞ |
≈ 106 किंवा 120 dB |
|
स्लीव रेट (S.R) |
∞ |
≈ 80 V/μs |
Last updated on Jun 11, 2025
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