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| 1. |
A bipolar differential amplifier uses a transistor having β = 200, I = 100 A, |A| = 500 and CMRR = 80 dB. The value of R and R will be respectively __________ . |
| Answer» 80 = 20 log CMRR ∴ CMRR = 10000 But CMRR = 2gmRE ∴ = 1.25 MΩ Adm = - gmRC = 1.25 KΩ. | |