Hello,
Please recommend some general (easier to find) opamp types, that can work at 4.5V, single supply, for the following applications:
1. low noise, that can output at least 1.5VAC peak without distortion on 5k load with 4.5V supply (or better a rail to rail opamp) - something like the classic LM358, but with lower noise;
2. driving low impedance headphones (1V / 33 Ohms) - something like LM386, but with lower noise and without internal gain setting.
Now I have LM358 and LM386, but I'm not content with the performance - so I want to find something better and easy to get - not very new opamps.
Thank you