[time-nuts] Fury Interface Board: How about TI OPA277?
Bruce Griffiths
bruce.griffiths at xtra.co.nz
Sun Nov 4 05:50:06 EST 2007
Don Collie wrote:
> Can`t it be done with just 3 resistors?
> Cheers,.............................................Don C.
>
>
No, you still need a stable negative voltage source.
In any case the collective decision appears to be that EFC ranges including
1) -10V to 0V
2) -10V to +10V
3) 0V to +10V
as well as parts of the above ranges.
There is no way that one can expand 0-5V into -10V to +10V with just 3
resistors.
Bruce
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