I'm looking for a unity-gain, low-power op-amp to replace an AD8244 as a voltage follower. I only need one amplifier circuit (not the four that the AD8244 has) and care about low cost, low current draw, ability to run on a single-ended 3.3 V supply and follow a 1.65 V input with noise being no more than a few uV.
Also, I'm a physics PhD student who has done a lot of electronics work, but this is my first experience designing a PCB and working with surface-mount components. Are certain surface-mount packages easier to work with for relatively inexperienced engineers?
Thanks for your help!
Thank you for using ADI parts. As for your queries:
1. Replacement for AD8244 - you can use ADA4805-1 (0.2 µV/°C Offset Drift, 105 MHz Low Power,Low Noise, Rail-to-Rail Amplifier).
2. Using SMD parts will save PCB space. However, soldering those tiny components may cause difficulty to inexperienced engineers. You can give it a shot and may find it interesting.
Good luck with your application. I hope this helps.