Pictures of scope measurements, nominal settings on MCM.

Reference voltages between DAC and opamp ( measured at capacitor Cn),
after resistor ( measured after resistor Rm) at opamp. 

20200823_164514.jpg	   refp, C1 between DAC and opamp
20200823_164717.jpg	   refp, R41 after opamp
20200823_164929.jpg	   incm, C2 between DAC and opamp
20200823_165049.jpg	   incm, R42 after opamp
20200823_165233.jpg	   cmout, C3 between DAC and opamp
20200823_165415.jpg	   cmout, R44 after opamp
20200823_165533.jpg	   refn, C79 between DAC and opamp
20200823_165644.jpg	   refn, R43 after opamp

One can see some "oscillation" after opamp.
More stable between DAC and opamp.

Voltages and ground at capacitors (measured at capacitor Cn), for different time scales

20200823_165854.jpg	   1.5V C140, 5 microsecond scale, touched something?
20200823_170106.jpg	   2.5V C139, 5 microsecond scale
20200823_170208.jpg	   2.5V C139, 5 millisecond scale
20200823_170634.jpg	   1.5V C140, 5 millisecond scale, touched something?
20200823_170904.jpg	   1.5V C140, 5 millisecond scale
20200823_171028.jpg	   1.5V C140, 5 microsecond scale
20200823_171231.jpg	   GND C140, 5 microsecond scale
20200823_171402.jpg	   GND C140, 5 millisecond scale
20200823_171525.jpg	   GND C140, 500 microsecond scale
20200823_171717.jpg	   1.5V C140, 500 microsecond scale
20200823_171820.jpg	   2.5V C139, 500 microsecond scale
20200823_172041.jpg	   Probe and probegnd on ground strap on LV card

There is some structure seen at 500 microsecond time scale.
Putting probe and probeground on LV ground show still the 500 microsecond scale?

Data taken (data for chip 0):
ch<channel>-<2000+chipnb>-<eventnb>-<runnb>.pdf
ch0-2000-1-34279.pdf
ch1-2000-1-34279.pdf
ch2-2000-1-34279.pdf
ch3-2000-1-34279.pdf
ch4-2000-1-34279.pdf
ch4-2000-2-34279.pdf
ch4-2000-3-34279.pdf
ch4-2000-4-34279.pdf
ch4-2000-5-34279.pdf
ch4-2000-7-34279.pdf
ch4-2000-8-34279.pdf
ch4-2000-9-34279.pdf
ch4-2000-10-34279.pdf
ch4-2000-11-34279.pdf
ch5-2000-1-34279.pdf
ch5-2000-32-34279.pdf

There is the short few microsecond oscillation. Due to reference
voltage "oscillation" after opamp?
The level is different event by event, due to stucture on 1.5V, 2.5V, GND
as seen at 500 microsecond scale??

Current varied sometimes between 2.4 and 3.1A. I.e. not stable.
LV card and MCM not well enough connected???? Or ....