I need help designing a multi-stage amplifier with a gain of 30, a load of 4 Ohms, and a maximum imput signal of 10 mVpk. There should be a output swing of 300mVpk while driving the load impedance. The amplifier input impedance must be > 50 kOhms. The supply must be 3 V. I will be using NPN 2222-type transistor for this task. I must not use more than 3 stages but in the last stage I could use up to 5 transistors connected in parallel.
Any hints on how to start? I was told to start backwards.
So far I am working on the last stage using a common-emmtier confuguration (buffer) but my output saturates on the negative swing when I use a 300 mVpk input signal (that is what I want as an output).
Thanks,
Ed
Any hints on how to start? I was told to start backwards.
So far I am working on the last stage using a common-emmtier confuguration (buffer) but my output saturates on the negative swing when I use a 300 mVpk input signal (that is what I want as an output).
Thanks,
Ed