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How to measure the frequency response of TIA

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tongkin

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Greetings,

I would like to measure the frequency response of TIA using Frequency Response Analyzer. How to make a connection?

My connection is in the attachment, but it does not work. Normally, my design should have 114dB, but the measurement only show -28dB

Anyone help me please...

Thank you,
 

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  • TIA.jpg
    TIA.jpg
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I don't know what is a TIA chip. It looks like an opamp on your sketch.
It won't do anything because it is missing a power supply.

If you power your opamp with a dual polarity supply then its gain is 500k/1M= 0.5 so its output will be 0.5VAC.
 
Yes, what is a TIA?

Normally, my design should have 114dB, but the measurement only show -28dB

114dB with respect to what?
 
Actually, TIA is the IATA code for Tirana airport in Albania. (No I have never been there).

JimB
 
People who talk in alphabet letters should have their arms and legs pulled off.
 
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