Just parallel 1056 of those .65nV op-amps seems like a no brainer. The optimum source resistance is rather silly but that's not the point.
If you Google SQUID pico-voltmeter you can find some nice work actual real time DC coupled amplifiers that are 10's of pico-volts noise. No cross-correlation or thousands of averaged FFT's. I was thinking this afternoon of how far you could go with a flux-gate magnetometer at room temperature to do the same thing but it does not look promising.
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No brainer indeed. At a total of ~75-100pA/rtHz current noise for the combo, you need about 0.1ohm source resistance to make any sense.
Actually I want to look at a source resistance of between .025 to .1 ohm. Maybe a bit higher or lower.
Don't knock brute force, not smart, but it gets it's way.
Don't knock brute force, not smart, but it gets it's way.
Drole as in the French drôle, droll is the limey version.
Indeed a confusing word in Anglo-spheres.
(quantum purifier -> quantum interference device. nanosquids appear very interesting)
Indeed a confusing word in Anglo-spheres.
(quantum purifier -> quantum interference device. nanosquids appear very interesting)
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