This differential amplifier has an active current-mirror load. Find Ro and Ad, if the bias current is 0.3 mA, all transistors have a length of 0.4 micron, the differential-pair transistors have W/L of 20 and the process node has μnCOX = 500 μA/V2 and |VA′| = 6 V/μm. What value of a load resistor will halve the gain?
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