ECE 3050 Analog Electronics Quiz 9October 21, 2009Professor Leach Nam eInstructions. Print y o ur n am e in the space abo ve. Place a box ar oun d your answers.Poin ts w ill be sub tracted if y o u do not expr ess each n u m erical answer a s a decim al numberand if you do not put a box around answers. Honor Code Statement: I have n eith ergiven nor received help on this quiz. In itials1. The figure sho w s a JFET curren t source used as the tail supply for a diff amp. Itis given that V−= −15 V, β =0.006 A/ V2,andVTO= −2.5V.UsetheequationID= β (VGS− VTO)2to solve for the value of RSfor ID=1.5mA.0.0015 = 0.006 [−0.0015RS− (−2.5)]2=⇒ RS=1.333 kΩ2. Shown is a schematic of the TL071 op amp. Circle eac h subcircuit and write in thecircle wh at the stage is, e.g. current mirror, common base, etc. Note, the subcircuitscan contain one or m or e transisto rs ea ch. — This is in th e class notes.1C1VCC+IN+VCC1080 ?1080 ?IN64 ?128 ?64 ?OFFSETN1OFFSETN2OUT18
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