Unformatted text preview: Physics 300 Section 062
Homework Assignment # 8 Due at the beginning of the Thursday October 26, 2006 lab. 1 Following the logic used to derive equation 8.2, derive equation 8.6 2 Derive an expression for the output voltage as a function of the input voltage for the
exponential ampliﬁer. 3 Using the data you obtained, using either the logarithmic or exponential ampliﬁers, in
section 8.2.2 to plot a straight line graph and determine n. Bonus points will be awarded for
correctly calculating 11 using the exponential ampliﬁer data 4 The main thrust of this section is to show how opamps can be used to perform basic
arithmetic operations, one of the operations we have skipped over is performed in the ﬁgure
below. Use your golden rules of op—amp operation to determine Vout as a function of the
three input voltages(V1,V2,V3. You may assume that all resistors have the same resistance R V'1—’W\/—
Zz—A/W—
3 A A A out ...
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 Fall '06
 dejong
 Physics, Work

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