PLUS+1 Hardware > Controllers

How to make the MC050 produce a 4-20mA signal?

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oiltronic:
I ended up making simple 1k/44uF RC filters between the MC050 MFOUT pin and the signal conditioner (Phoenix 2864163, 100k input impedance).  I used a decent low-noise metal film 1/4W 1k resistor and two 22uF Panasonic EEU-series caps in parallel.  The 'scope showed less than 70mV ripple at 4kHz PWM, 50% duty, much of which, it seemed, was from the input sampling of the signal conditioner itself.  Works great.

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