Tool/software:
Hello,
We are using an LM334 device in our circuit configured as a constant current source of 35uA. The resistors used to set the current are 0.1% tolerance. We have built and tested a batch of 31 circuits and measured the current. From the results of the measurements, we calculate that the spread in current values is 35uA +/-2.85%. Looking at the data sheet for the LM334 device we see the parameter set current error (10uA -> 1mA) with a tolerance of +/-6%. The spread in values we see +/-2.85% is much less than the data sheet value of +/- 6%.
Could this be batch related?
When we launch into volume manufacture, should we expect to see a wider spread in set current aligned to the data sheet +/-6%?
Thabnk you,
