LT6600 and balanced output

Question

Hi, 
 I've been modeling the LT6600-10 in the below circuit and the SPICE model outputs Vocm imbalance of +/- 20 mV. Is this correct and is there a way to mitigate it? 
 Thanks!

harrynsc · Accepted Answer

40 uA bias current times big R times gain of 100 should give you volts, not millivolts. 
 LTSpice is telling you what the real silicon would probably do. 
 Harry)

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LT6600 and balanced output