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Mutaja
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Homework Statement
I have used words here I'm not sure will explain what I mean accurately. If you're confused, ask, and I'll provide as much context as I can.
Given the below circuit
a) What are the three properties of an ideal op amp? These properties provides background for two equations, which equations are these?
b) Derive the expression for the DC amplifying factor AV = VOUT / VIN. Prove answers in decibels as well.
c) Let VIN be 100mV DC. A load RL = 1k ohm is attached to VOUT. What's the power amplifying? What's causing this power amplifying?
d) Derive the expression for the transfer function AV = VOUT / VIN. Use impedance. Write on standard form.
e) Find the 3dB frequency. Sketch the bode-gain for the frequency response to the circuit. Which type of circuit is this?
Homework Equations
The Attempt at a Solution
a) Properties: RIN = infinity. ROUT = 0, AV0 = infinity.
Equations: V+ = V- and iIN = i- = i+ = 0
b) Look at my response for d).
c) I'm not sure how I'm supposed to compute this. I (think I) have lecture notes and examples in my book to help me out with the circuit - but the attached resistor to VOUT is throwing me off here.
d) We've worked out this equation for another assignment:
For question b), what's the difference? They're still asking for AV = VOUT / VIN. The difference is answers in dB, standard form and use of impedance...
e) I know what a bode gain is, but where do I get the numbers from to calculate the frequency and the gain?
I also have formulas to calculate dB from current, voltage or power.