C
Christian Walter
- Jan 1, 1970
- 0
Hello,
I am currently looking for a way to measure and control the current
through a resistive load. I found same standard circuits often used for
voltage/current conversion but all of them are temperature sensitive
because they simply measure the current through an additional sense
resistor. This does not provide the desired accuracy over the entire
temperature range. For example if I use a 50ppm resistor and a resistive
value of 100R I have about 0.25R over a temperature range of 100K. This
is 0,25% which allows maybe 8-9Bits of resolution.
Does anybody know a good solution for this problem or can provide some
hints on that?
Kind regards,
Christian Walter
I am currently looking for a way to measure and control the current
through a resistive load. I found same standard circuits often used for
voltage/current conversion but all of them are temperature sensitive
because they simply measure the current through an additional sense
resistor. This does not provide the desired accuracy over the entire
temperature range. For example if I use a 50ppm resistor and a resistive
value of 100R I have about 0.25R over a temperature range of 100K. This
is 0,25% which allows maybe 8-9Bits of resolution.
Does anybody know a good solution for this problem or can provide some
hints on that?
Kind regards,
Christian Walter