Difference between revisions of "Errata: A21 entry for op amp dynamics should have a negative sign"

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(Created page with "{{errata page | chapter = Examples | page = 92 | line = 4 | contributor = E. August | date = 20 Sep 2019 | rev = 2.11b | version = Third printing | text = The lower left entr...")
 
 
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The lower left entry to the dynamics matrix (A_21) should be negative, as this is an inverting amplifier, for which v_o=-R_b/R_a v_2.  So the entry should be
 
The lower left entry to the dynamics matrix (A_21) should be negative, as this is an inverting amplifier, for which v_o=-R_b/R_a v_2.  So the entry should be
<amsmath>
+
<center>
 
-\frac{R_b}{R_a} \frac{1}{R_2 C_2}
 
-\frac{R_b}{R_a} \frac{1}{R_2 C_2}
</amsmath>
+
</center>
 
}}
 
}}

Latest revision as of 00:25, 21 September 2019

Return to Errata page

Location: page 92, line 4

The lower left entry to the dynamics matrix (A_21) should be negative, as this is an inverting amplifier, for which v_o=-R_b/R_a v_2. So the entry should be

-\frac{R_b}{R_a} \frac{1}{R_2 C_2}

(Contributed by E. August, 20 Sep 2019)