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(15 points) In the current-mirror circuits (a) and (b) shown below, all transistors are operating at the same current and have the same VOV and the same VA. Give the output resistance RO for each mirror in terms of IREFF , VOV, and VA. Give the minimum voltage VO each mirror requires to operate properly in terms of Vt and VOV. (a) (b)

(15 points) In the current-mirror circuits (a) and (b) shown below, all transistors are operating at the same current and have the same VOV and the same VA. Give the output resistance RO for each mirror in terms of IREFF , VOV, and VA. Give the minimum voltage VO each mirror requires to operate properly in terms of Vt and VOV. (a) (b)

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  1. (15 points) In the current-mirror circuits (a) and (b) shown below, all transistors are operating at the same current and have the same V O V and the same V A . Give the output resistance R O for each mirror in terms of I REFF , V O V , and V A . Give the minimum voltage V O each mirror requires to operate properly in terms of V t and V O V . (a) (b)

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