Other Parts Discussed in Thread: TLV6002
Tool/software:
Hello,
Today, I came across a document by chance, and I found it to be very well written. However, there is a section where I believe the description might be incorrect. Could you help clarify this for me?
On page 13 of the document, in the description of Gain Bandwidth Product (GBWP) measurement, should the final frequency measurement result be divided by the gain? I believe it should be multiplied by the gain instead. Could you confirm if my understanding is correct?
Document link: https://www.ti.com/lit/ug/sbou297a/sbou297a.pdf?ts=1725588102560&ref_url=https%253A%252F%252Fwww.ti.com%252Ftool%252FAMP-PDK-EVM
I actually tested this using the TLV6002, amplifying a 20mV sine wave by 101 times, and used a DMM34461A for measurement. At 100Hz, the amplitude was 0.710V, and when the frequency increased to 10.1kHz, the amplitude measured on the DMM dropped to 0.50V, exactly down by 70.7%. I checked the manual and found that the GBW of the TLV6002 is 1MHz.
I also have to say, this is indeed a good method for verification.