Bjarne Skipper

Having much benefits using the AD2 during many years, I have now discovered that the power supply outputs having significant switching noise which depends on the output voltage and load at the power supplies! Unloaded it is wellknown that DC-DC power supplies can be pulse skipping and thereby cause low frequency switching noise. But even with reasonable loads the noisy behavior are still significant! Hereby a couple of measurements: Ch1: positive supply Ch2: negative supply Is it possible to reduce/remove this power supply noise? (Except of cause by heavy LP filtering). BR Bjarne 500mV, -500mV 1000mV, -1000mV 900mV, -900mV 1500mV, -1500mV