National Semiconductor LME49710

11 discussions on ElectronDepot about the National Semiconductor LME49710: what owners asked, what went wrong, and what fixed it.

What owners report

Völlig OT

Am 07.12.19 um 11:34 schrieb Der Habakuk.: > Am 07.12.2019 um 10:35 schrieb Hartmut Kraus: >> Am 06.12.19 um 22:41 schrieb Der Habakuk.: >>> Gerade im Bereich Hartz-IV, Sozialamt, Grundsicherung vermute ich, >>> daß diese stellen genau...

DC-Offset Regelung beim Audioverstärker

Hallo,nach weiteren zwei Jahren schein mein alter Technics nun doch den Geistaufzugeben und ich hab keine Lust mich schon wieder auf Fehlersuche zubegeben. In meiner Bastelkiste hab ich noch zwei TDA7294 gefunden, mitdenen ich den...

Final final 1kHz oscillator

This is the simplest circuit I can come up with.Harmonics are more than 80dB down in simulation.FFT the last 30 seconds.There is only one harmonic stopping me claiming 90dB but the exact FFT result can dependon exactly how much output is...

The quietest audio op-amp with ultra-low THD

National's LME49710/20/40 amd LM4562 seem to have the best figures at2.5nV/sqrt Hz but in a practical circuit I found the venerable NE5534with its 3.5 nV/sqrt Hz was quieter, presumably due to lower input noisecurrent in that particular...

Quadrature Oscillator

Quadrature oscialltor. Hi all, As part of the CV measurements (from a previous post) I'm thinking about a 1 MHz lockin. (Maybe a different thread to talk about how to do the switching.) I was wondering if I could make a quadrature...

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