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Unformatted text preview: all 2013 Prof. Ming C. Wu Frac@onal Scaling §༊ A frac@on of IREF can be created in Q1 by scaling up the emiLer area of QREF. ⎛ྎ V
I REF = 3I S exp⎜ྎ X
⎜ྎ V
⎝ྎ T ⎛ྎ V
I copy = I S exp⎜ྎ X
⎜ྎ V
⎝ྎ T ⎞ྏ
⎟ྏ
⎟ྏ
⎠ྏ ⎞ྏ
⎟ྏ
⎟ྏ
⎠ྏ 1
I copy = I REF
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EE105, Fall 2013 Lecture 11 – Slide 10 Prof. Ming C. Wu 5 Example: Diﬀerent Mirroring Ra@o §༊ Using the idea of current scaling and frac@onal scaling, Icopy2 is 0.5mA and Icopy1 is 0.05mA respec@vely. All coming from a source of 0.2mA. Lecture 11...
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This note was uploaded on 01/22/2014 for the course EE 105 taught by Professor Kingliu during the Fall '07 term at University of California, Berkeley.
 Fall '07
 KingLiu
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