Does anyone know what the current stability is of the power controller ADN2830, when operating to control constant current, rather than constant power?
Here is my application: We'd like to use an ADN2830 eval board as a current controller for an external cavity diode laser (ECDL). ECDLs output light with a very well defined wavelength (typically the linewidths are on the order of 100kHz to 1MHz over a few microseconds). To achieve this the laser diode current needs to be very stable, e.g. a current drift of <10 microA over a second. Will ADN2830 achieve this stability or better?