August 2005
Intermediate to advanced
608 pages
18h 12m
English
Content preview from Current Sources and Voltage References
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Enhancing the voltage reference design
An Introduction to Voltage References
339
specs it is possible to determine the power requirements involved. The total power dis-
sipation can be found by equation 12.10 as follows:
where V
in max
is the maximum input voltage; V
out min
is the minimum output voltage;
I
load max
is the maximum load current; and I
Q max
is the reference’s maximum quies-
cent current.
One has to next determine the maximum temperature rise, which can be calculated by
equation 12.11:
where T
R max
is the maximum temperature rise; T
Jmax
is the maximum junction tem-
perature; and T
A max
is the maximum ambient temperature.
We can calculate the ...
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