Circuit: * Z:\home\maximilian\UppSense\ltspice\transimpedance_amplifier\002transimpedance_ad8616_three_res.asc Instance "m:u1:6": Length shorter than recommended for a level 2 MOSFET. Instance "m:u1:5": Length shorter than recommended for a level 2 MOSFET. Instance "m:u1:4": Length shorter than recommended for a level 2 MOSFET. Instance "m:u1:3": Length shorter than recommended for a level 2 MOSFET. Instance "m:u1:2": Length shorter than recommended for a level 2 MOSFET. Instance "m:u1:1": Length shorter than recommended for a level 2 MOSFET. .step rvar=100 Direct Newton iteration failed to find .op point. (Use ".option noopiter" to skip.) Starting Gmin stepping Gmin = 10 Gmin = 1.07374 vernier = 0.5 vernier = 0.25 vernier = 0.125 vernier = 0.0625 vernier = 0.03125 Gmin = 1.0412 vernier = 0.015625 vernier = 0.0078125 Gmin = 1.0132 vernier = 0.00390625 vernier = 0.00195313 Gmin = 1.00827 vernier = 0.00260417 vernier = 0.00130208 Gmin = 1.00515 vernier = 0.000651042 vernier = 0.000868055 vernier = 0.000434028 Gmin = 1.00434 vernier = 0.000578703 vernier = 0.000434027 Gmin = 1.00339 Gmin = 0 Gmin stepping failed Starting source stepping with srcstepmethod=0 Source Step = 3.0303% vernier = 0.25 Source Step = 7.57576% Source Step = 15.1515% Source Step = 22.7273% Source Step = 30.303% Source Step = 37.8788% vernier = 0.375 Source Step = 48.8636% Source Step = 60.2273% Source Step = 71.5909% Source Step = 82.9545% Source Step = 94.3182% vernier = 0.5625 Source stepping succeeded in finding the operating point. .step rvar=1000 .step rvar=10000 Date: Wed Jun 14 13:11:08 2017 Total elapsed time: 1.163 seconds. tnom = 27 temp = 27 method = trap totiter = 6807 traniter = 0 tranpoints = 0 accept = 0 rejected = 0 matrix size = 53 fillins = 63 solver = Normal Matrix Compiler1: 4.16 KB object code size 1.6/0.9/[0.5] Matrix Compiler2: 5.90 KB object code size 1.1/1.2/[0.6]