Hi guys, I'm currently designing a battery powered audio circuit. I've already finished all the signal processing stuff, and now I'm looking for a suitable output buffer to drive the speaker, which is about 50Ω impedance. Some of the requirements for the op amp buffer: - Single supply operation with Vss ≥ 3V - Rail to rail output - Low distortion / noise - Unity gain stable - Output current of at least 100mA I have already experimented with the BUF634, and it works, but at $8 it is just too expensive. The LME49726 might be better as it's only $1.50, but I can't find a PSpice or LTSpice model for it. So I'm hoping that someone here will either 1) know how to get the PSpice model for the LME49726, or 2) know of a better op amp. Thanks for helping me out!