Circuit: * Z:\home\maximilian\UppSense\ltspice\transimpedance_amplifier\010transimpedance_ada4530_ext_amps_pulsing.asc Instance "m:u3:4": Length shorter than recommended for a level 2 MOSFET. Instance "m:u3:3": Length shorter than recommended for a level 2 MOSFET. Instance "m:u3:2": Length shorter than recommended for a level 2 MOSFET. Instance "m:u3:1": Length shorter than recommended for a level 2 MOSFET. Instance "m:u2:4": Length shorter than recommended for a level 2 MOSFET. Instance "m:u2:3": Length shorter than recommended for a level 2 MOSFET. Instance "m:u2:2": Length shorter than recommended for a level 2 MOSFET. Instance "m:u2:1": Length shorter than recommended for a level 2 MOSFET. 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 Gmin = 1.1391 vernier = 0.03125 vernier = 0.015625 vernier = 0.0078125 vernier = 0.00390625 Gmin = 1.12477 vernier = 0.00195313 vernier = 0.000976563 Gmin = 1.12121 vernier = 0.00130208 Gmin = 1.11793 vernier = 0.00173611 vernier = 0.00231481 vernier = 0.00115741 Gmin = 1.11437 vernier = 0.00154321 vernier = 0.00205761 Gmin = 1.11026 vernier = 0.00102881 vernier = 0.00137174 Gmin = 1.10789 vernier = 0.00182899 vernier = 0.000914493 vernier = 0.00121932 Gmin = 1.10552 vernier = 0.00162576 Gmin = 1.1016 vernier = 0.000812882 vernier = 0.00108384 Gmin = 1.09959 vernier = 0.00144512 vernier = 0.00192683 Gmin = 1.09579 vernier = 0.000963415 vernier = 0.00128455 Gmin = 1.09359 vernier = 0.00171274 vernier = 0.000856369 vernier = 0.00114182 Gmin = 1.09141 vernier = 0.00152243 vernier = 0.000761216 Gmin = 1.08923 vernier = 0.00101495 vernier = 0.00135327 Gmin = 1.08642 vernier = 0.00180436 Gmin = 1.08202 vernier = 0.00240582 vernier = 0.00320776 Gmin = 1.07468 vernier = 0.00160388 vernier = 0.0021385 Gmin = 1.07052 vernier = 0.00106925 vernier = 0.000534626 vernier = 0.000400969 Gmin = 0 Gmin stepping failed Starting source stepping with srcstepmethod=0 Source Step = 3.0303% Source Step = 33.3333% Source Step = 63.6364% Source Step = 93.9394% Source stepping succeeded in finding the operating point. Date: Fri Jun 30 10:24:58 2017 Total elapsed time: 8.712 seconds. tnom = 27 temp = 27 method = modified trap totiter = 27026 traniter = 14020 tranpoints = 5355 accept = 4320 rejected = 1035 matrix size = 386 fillins = 627 solver = Normal Thread vector: 25.7/20.0[4] 14.1/7.8[4] 8.1/4.6[4] 2.8/2.5[2] 2592/500 Matrix Compiler1: 48.35 KB object code size 20.1/9.4/[6.0] Matrix Compiler2: 41.33 KB object code size 9.5/11.9/[5.2]