[Elektro]

I'm having trouble using the MLT04 analog multiplier. When I measure
the output from the multiplier I get a drifting offset. The offset
drifts with a low frequency about 1-2 mV.

I have grounded the inputs to the multiplier to see if the offset drift
came from there, but there's no difference.

Anybody having the same experience with this part?

 

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The spec sheet claims 0.005%/degree centigrade drift. If the
temperature chages 1 degree C, I think that means the offset might
drift 10 volts * 0.00005 = 0.5 millivolt. Maybe you part is undergoing
a 2 to 4 degree temperature change?

Dont' feel too bad, the older multipliers were several powers of ten
worse.