T09 OTA_sss.pdf - bSpace
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CMRR Analysis<br />
No tail current source Tail / No Body Effect Tail / With Body Effect<br />
• Ignoring ΔG m , Δr o<br />
(use superposition)<br />
• E.g.<br />
1/0.01 = 100 = 40dB<br />
• E.g.<br />
2 x 1mS * 1MΩ / 0.01<br />
= 200,000 = 106dB<br />
• E.g.<br />
10/0.01 = 1000 = 60dB<br />
EECS 240 Topic 9: <strong>OTA</strong><br />
© 2007 B. Boser & A. Niknejad
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