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Lecture08_Current_Sources_2up

Lecture08_Current_Sources_2up - EECS240 Spring 2008 Lecture...

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EECS240 – Spring 2008 Lecture 8: Current Sources Elad Alon Dept. of EECS EECS240 Lecture 8 2 Bias Current Sources What makes a current source a current source? High output impedance Other important properties: Voltage range (V min ) Noise Accuracy Techniques: cascoding, gain boosting
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EECS240 Lecture 8 3 Bias Current Source Is this a “good” bias current source? EECS240 Lecture 8 4 Current Mirror Better approach: current mirror
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