Question
Design an inverting amplification circuit with a gain of at least $40 \mathrm{~dB}$, and an input impedance of at least $100 \mathrm{k} \Omega$. No resistor used may be greater than $500 \mathrm{k} \Omega .$ Multiple stages are allowed.
Step 1
First, we need to convert the gain from dB to a unitless value. A gain of 40 dB is equivalent to a gain of 100 in unitless form, as 40 dB = 20 * log10(G), where G is the unitless gain. Solving for G, we get G = 10^(40/20) = 100. Show more…
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Using the components listed in Table P14.36, design an amplifiet having a voltage gain of $-10 \pm 20$ percent The input impedance is required to be as large as possible (ideally, an open circuit). Remember to use practical resistance values (Hint: Cascade a noninverting stage with an inverting stage.)
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