3) In the circuit shown below, Q2 operates as an emitter follower. Find (W₁ / WREF) to have a power budget of 3 mW and output impedance of 50 0. VA = ∞ and ẞ >> 1. (Hint: Fazll gmz VinoQ2 Vcc = 2.5 V REF - Vout Q₁ QREF