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Item 1 Design a difference amplifier shown in the following figure to meet the following criteria: v. = 3up - 4va The resista

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By using superposition theorem, VO Vo, + Voz No, ik opp voltage due to va and Voz is the olp voltage due to vb. Noi : V=0 the

vo = Vo + Vor Vo - R6 -Va Ra Rb Ra Vb Retrd) compare it with, No = -4V + 3V Then, Rb Ra lt Rb Ra = 3 RtRd 5 = 3 Retro RtRd Gi

Rex 33 = 225kr Re= 22.5X5 = 37.5kr Rd Ret Rd 11 mln 5R2 = 3Rc73Rd 2Rd = 3Rc Rd = 2 x 37.5k= 56.25kr . R=37.5kr Rd=56.25kr

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