T tongkin New Member Oct 2, 2010 #1 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, Attachments TIA.jpg 70.9 KB · Views: 220
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,
audioguru Well-Known Member Most Helpful Member Oct 2, 2010 #2 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.
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.
JimB Super Moderator Most Helpful Member Oct 2, 2010 #3 Yes, what is a TIA? Normally, my design should have 114dB, but the measurement only show -28dB Click to expand... 114dB with respect to what?
Yes, what is a TIA? Normally, my design should have 114dB, but the measurement only show -28dB Click to expand... 114dB with respect to what?
JimB Super Moderator Most Helpful Member Oct 2, 2010 #5 Actually, TIA is the IATA code for Tirana airport in Albania. (No I have never been there). JimB
audioguru Well-Known Member Most Helpful Member Oct 2, 2010 #6 People who talk in alphabet letters should have their arms and legs pulled off.