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GATE ECE 1999 | Question 1.11

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A Darlington emitter - follower circuit is sometimes used in the output stage of a $\text{TTL}$ gate in order to

  1. increase its $\mathrm{I}_{\mathrm{OL}}$
  2. reduce its $\mathrm{I}_{\mathrm{OH}}$
  3. increase its speed of operation
  4. reduce power dissipation

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