. . . i guess i got it better this time than previously
feel free to dump or redesign
don't feel too 4 however ::x
??? . . . i guess the trivial use of this stuff is that you set your reference to 0÷Vs and simply amplify this by op-amp to have ±9(/10)mA voltage source/-reference . . . it seems i've missed that sentence "The reference and buffer combine to achieve a drift of 30ppm/°C, a line regulation of 20ppm/V and a load regulation of 150ppm/mA." . . . ±10mA → max.±6.75mV for 9V Vs.TOT . . . ??? the simulation is typically 10÷1000x better than the actual thing ±15µV → ±15mV =sum. somewhat credible . . .
[end of that bullshit]