I want to use AD8665 as a buffer, non-inverting with unity gain. Can I use a 0 ohm feedback resistor?
For some amplifier, the feedback resistor should be a specific value for unity gain.
For others, like the OPA279, the feedback resistor can be…
The AD8665 is the single option of the AD8666. I see that it is already in the LTspice library. That model should have the same performance.
Let me recommend you the following parts for your buffer. You can start from these four.
Searching information on AD8655 current noise on this website (nothing is found in the datasheet) I find this kind of answers:
"On CMOS op amps, the current noise is very, very low. It's usually negligible. That's why you don't see it on the…
I have a task to optimize noise in BW 10Hz - 10kHz.
Voltage gain shall be around 20..50. OA connected directly to source of signal,
which has impedance 1kOm DC and 50Om AC. OA connected to middle point of R1/R2 divider,
where R1 connected…