LOW PASS HI PASS BAND PASS FLAT ( also why opamp noises specs are not what you think they are for PI s )
So you are designing a new Pulse Induction metal detector ... what should the preamp frequency response be and what factors are important in choosing an opamp ?
(... and here is a clue. That 0.8 nV opamp you have been drooling over in the catalogue may not be optimum at all ... noise figures for opamps are driven by marketing not engineering
)
So you are designing a new Pulse Induction metal detector ... what should the preamp frequency response be and what factors are important in choosing an opamp ?
(... and here is a clue. That 0.8 nV opamp you have been drooling over in the catalogue may not be optimum at all ... noise figures for opamps are driven by marketing not engineering

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