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Old 22nd Feb 2021, 4:06 pm   #18
Craig Sawyers
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Join Date: Nov 2010
Location: Oxford, UK.
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Default Re: Sugden preamp WAL AC Farnell.

The other characteristic is low Vce(sat). I have measured 6mV on some of the current E-line devices even at a few mA Ic. Of course this is a needed characteristic for applications like stepper-motor drive. There is a definite correlation between Vce(sat) and en.

The rbb' of some of the E-line devices has been measured (HH Ed 3) at sub 2-ohms with very low 1/f noise corner, better even than the legendary and long obsolete Rohm parts.

Diodes Inc have now recognised the low noise performance of their E-line devices, and list as one of the applications low noise audio.

The disadvantage is of course high capacitance, because of the extended (interdigitaged) junction area.

Craig

Last edited by Craig Sawyers; 22nd Feb 2021 at 4:14 pm.
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