multistage Amplifier

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ramy ahmed

Joined Jun 21, 2007
1
I am a student in electronics dept. in faculty of eng. in cairo univ. in the 1styear
I am now doing the final year project , i am required to design a multistage amplifier:
1.voltage gain>=100v/v
2.Rin=1Mohm
3.Rout=100ohm
4. R load=10Kohm
5.R source=10kohm
6.Vsource=1mv & 1KHz
please i want any help
 

Papabravo

Joined Feb 24, 2006
13,939
I am a student in electronics dept. in faculty of eng. in cairo univ. in the 1styear
I am now doing the final year project , i am required to design a multistage amplifier:
1.voltage gain>=100v/v
2.Rin=1Mohm
3.Rout=100ohm
4. R load=10Kohm
5.R source=10kohm
6.Vsource=1mv & 1KHz
please i want any help
First I would decide on a number of stages. If two is acceptable then that's what I would shoot for. Next we need to decide what gain to shoot for in each stage. I would pick a number a bit larger than 10 to allow for some component variation. Let's say two stages each with a gain of 12.

So we need an amplifier stage with a gain of 12 and input impedance of 1 Mohm. What kind of transistor in what configuration will make it easy to meet those requirements. Once you have that figured out we can proceeed.
 
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