T
treez
Guest
Hello,
This concerns single supply operation of LT1787 as in figure 8, page 12 of the datasheet.
The LT1787 current monitor, on page 3 of its datasheet quotes "vout" as "v(bias) + 1.024V" if "Vs+ > 3.3V".
Why does "Vs+" have to be greater than 3.3V?
Surley LT1787 can produce vout = v(bias) + 1.204V if "VS+" = 2.5v?
(assuming v(bias) = 0V.
Further down the page on page 3, "VOmax" is stated as VS+ -0.75v.
So why are they saying that "vs+" has to be greater than 3.3V for "vout" to be 1.024V?
Surely if "Vs+" is just 2.5v, then "vout" could be 1.024V ?
LT1787 DATASHEET:
http://cds.linear.com/docs/en/datasheet/1787fc.pdf
This concerns single supply operation of LT1787 as in figure 8, page 12 of the datasheet.
The LT1787 current monitor, on page 3 of its datasheet quotes "vout" as "v(bias) + 1.024V" if "Vs+ > 3.3V".
Why does "Vs+" have to be greater than 3.3V?
Surley LT1787 can produce vout = v(bias) + 1.204V if "VS+" = 2.5v?
(assuming v(bias) = 0V.
Further down the page on page 3, "VOmax" is stated as VS+ -0.75v.
So why are they saying that "vs+" has to be greater than 3.3V for "vout" to be 1.024V?
Surely if "Vs+" is just 2.5v, then "vout" could be 1.024V ?
LT1787 DATASHEET:
http://cds.linear.com/docs/en/datasheet/1787fc.pdf