Question

&AsSume the FET the circi t be low has and K 32m Alv O.75 V Vt the FET s actve es tmat Vas, I and Vos Assumi'ng Es the FET active? A ss une A9-4 Va ID C. RS5kn 50l Rar Vs 6 s 32 A Vbt V0.65V Is the FET active Suppe ia Ca) fondgrn 32 mA/ Vt a75 end eslemet the eid ban vo ltagi gain shont raics asaumeg a s and G act

Answer 1

Soln VDDニ6v Rhニ250e RutRu Nム 5つK+201に md vs このv VG-Vs ニ!-0二/V Vas mdl コDニ K(Vus-vt)2 32Xに(1-075)と

.ID32x10x (o- i ) c2x16 A -2 mA VPS VpD- IDKD -2x34x Nas Vps (sat)Vas- vt I - o-75=o-25 a tiv mude VDs > VDsCJt But hene vps = -2 Hence vps < Vp { su¢ . hence noi in activenocs. Vt o-65, IK= 32 A/vz 32x (1-0-45) 3 2x2 (0 33)2 3.92 m A ID 3 . . Vps - - 3.92x10 x4x10 - 9.67

Nowo Vos (sad)=vas-V -0.650.35 VDs vps(a) hence is nst activn pod c) Small naeguvalerd madal o m=2k(vas-vt) 2 x 34X i -D73) o.oI6 16MAV Ren = R Ra2 = 25Dk// Ra 41.67 k2 Vo Av Nous Va -Fm (RpilR SX(4I6K) - 51. 2 v//

Gme Ra VS RatRs 41. 67k 41.67KS Av VO ニーS)-2 × 6.89 2 Av ニ-45-7/ v/v

Note- please find me in comment box if you find any difficulty. I am confused with value of K. Is it k' of simply k. Depending on this answer will change.