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Unformatted text preview: a) Draw an equivalent small signal model for this circuit. . b) Calculate the small signal gains v o2 /v i and v o1 /v i . Assume that V B and the devices sizes are chosen such that the DC bias point of nodes V o1 and V o2 is exactly at V DD /2. You are also given V tn =|V tp |=0.5V. Assume V DD =2V. c) Suppose we now reduce V DD , with all device sizes and V B unchanged from (b). What is the minimum V DD that guarantees to keep the transistors in saturation at all times? Assume that the peak amplitude of v i is 5mV. Note : There are several Last modified 9/27/2004 8:02 AM EE214 Winter 04/05 Handout #4 B. Murmann Page 2 of 2 possible ways to solve this problem. In case you make any simplifying assumptions, especially with respect to small signals, make sure to state them clearly. V o1 v i V B V o2 V DD Last modified 9/27/2004 8:02 AM...
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This note was uploaded on 04/17/2008 for the course EE 214 taught by Professor Murmann,b during the Fall '04 term at Stanford.
- Fall '04
- Integrated Circuit