Ventilo
Newbie level 4
Hello, before I ask you my question I just wanted to say I am new at the board.
So over to my question. I need some help to dimension a cascade circuit amplifier with the LM324. The circuit must fulfil the following values:
- In Impedance = 25kΩ
- Above frequency = 100Hz
- Below frequency = 150kHz
- Maximun gain = 40dB
I have solved the first circuit by having a LP-filter at the input and 2 amplifiers cascade connected to each other. So the gain = 20db/amplifier = 20db*2=40dB in my case.
Now I need some help with the HP-filter. Can someone give me som suggestion on a cascade connected circuit with the following parameters that I have give you at the top. I will not work for me...
So over to my question. I need some help to dimension a cascade circuit amplifier with the LM324. The circuit must fulfil the following values:
- In Impedance = 25kΩ
- Above frequency = 100Hz
- Below frequency = 150kHz
- Maximun gain = 40dB
I have solved the first circuit by having a LP-filter at the input and 2 amplifiers cascade connected to each other. So the gain = 20db/amplifier = 20db*2=40dB in my case.
Now I need some help with the HP-filter. Can someone give me som suggestion on a cascade connected circuit with the following parameters that I have give you at the top. I will not work for me...