ECE 164 Analog Integrated Circuit Design First Midterm Exam, October 23, 2001 2All of the problems relate to the following amplifier circuit. This type of circuit is often used in situations where it is necessary to amplify the difference between an input signal and a constant “reference” voltage, VREF. ViM2M3VoM1M4VG2VREFVG4In solving the problems, you may assume that (i) 13dsdsrr==∞, (ii) all transistors are in saturation, (iii) the voltages, VG2, VREF, and VG4, are held constant by circuitry not shown in the figure (i.e.,
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