Question

8.2 Work out problems (25) 1. (3) Match the symbols with the options: NMOS, PMOS, or diode. Label of all device terminals. + 2. (5) Given 4 equally sized and matched

transistors, draw a two output current mirror. One output should equal the reference current and the other output should double it. Assume A = 0. Inef ħ 3. (5) Why does IREF # IOUT in the circuit below? Assume both transistors are matched and in saturation. IREF 2 V 138/7.8 ¥ 4. (2) What is the purpose of the source follower output of the op amp? JOUT 3V 138/7.8

Fig: 1