Hello,
I am trying to amplify a small signal with variable gain. The frequency going in is about 30 Hz. That is my limitation. Right now, I am using LT 1228. Before I get into the variable gain problem, I first want to see if the LT 1228 will even work with such a small frequency. I have attached a schematic of my circuit that should be similar to the one on the LT 1228 datasheet. My question is theoretically will this circuit be able to work with such a low frequency? I have breadboarded the circuit and I am not receving much output on the oscilloscope so I am curious if this is my fault or the LT 1228's fault. If the LT 1228 can't handle the frequency (it does so a small signal at ~300Hz), does anyone have any recommendations of a chip that I could use for this?
Thank you
Matt
I am trying to amplify a small signal with variable gain. The frequency going in is about 30 Hz. That is my limitation. Right now, I am using LT 1228. Before I get into the variable gain problem, I first want to see if the LT 1228 will even work with such a small frequency. I have attached a schematic of my circuit that should be similar to the one on the LT 1228 datasheet. My question is theoretically will this circuit be able to work with such a low frequency? I have breadboarded the circuit and I am not receving much output on the oscilloscope so I am curious if this is my fault or the LT 1228's fault. If the LT 1228 can't handle the frequency (it does so a small signal at ~300Hz), does anyone have any recommendations of a chip that I could use for this?
Thank you
Matt
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