ESP32 Forum

Hello,

does anyone know if the esp32 s3 has a built in low noise amplifier (LNA) hardware like the esp32?

I see that no one knows.
I found this interesting thread https://github.com/krzychb/esp32-lna and wanted to test it on esp32s3.
Maybe someone has contact to the esp32s3 engineer?

I don't actually know about the LNA on the -S3, but that's because I have never seen it documented anywhere, and, just like the Hall effect sensor, no hints or remnants of documentation either.
My bet is that Espressif physically removed these pieces from all the successors to the OG ESP32.

No LNA on any of out chips (at least for the adc). The original ESP32 technically does not have it anymore either, as in, it was barely supported and buggy in the first place so we removed it from the datasheet and while it may or may not still be on the silicon, we don't test it anymore so who knows what it does. The rest of the chips never had a LNA designed into it in the first place.

Thank you for your answer.
Its a pity that LNA couldnt be built into new versions of ESP32. This functionality allows for significant extent of the ESP32 applications without the need to expand the hardware (in my case thermocouple).