Other Parts Discussed in Thread: THS4551
Dear E2E Team!
I simulate AC, Transient and Noise Analysis of THS4541 using LTSpice. DS provides 2.2nV/sqrt(Hz) spectral density.
All resistor less than 1KOHM. Simulation shows a noise spectral density of 90nV/sqrt(Hz) which is much higher as expected.
in the spice model i add 10MEG resistors according "THS4541:ThePSPICE model for ths4541dose not work" discussion.
I found also a THS4551 spice model. But simulation provides error message in any simulation.
the log file out put is gieven:
Circuit: * H:\MyAppNotes\Simulation\LTSpice\CircuitAnalysis\MBOLO\fda_mbolo&ADC_THS4551.asc
WARNING: Node U2:I0:I0:I21:1:O is floating.
ERROR: Node U2:I0:I0:I32:NET8 is floating and connected to current source G:U2:I0:I0:I32:RCMFBAVG1
WARNING: Less than two connections to node U2:I0:I0:I21:1:O. This node is used by R:U2:I0:I0:I21:1:3000.
u2:i0:i0:i32:vprobe: Missing value, assumed 0V @ DC
u2:i0:i0:vprobe1b: Missing value, assumed 0V @ DC
u2:i0:i0:vprobe1a: Missing value, assumed 0V @ DC
u2:i0:i0:vprobe2a: Missing value, assumed 0V @ DC
u2:i0:i0:vprobe2b: Missing value, assumed 0V @ DC
u2:i0:i0:vprobe4: Missing value, assumed 0V @ DC
Direct Newton iteration for .op point succeeded.
Heightened Def Con from 0.000363366 to 0.000363366
Date: Mon Jan 09 15:07:20 2023
Total elapsed time: 49.607 seconds.
tnom = 27
temp = 27
method = modified trap
totiter = 812984
traniter = 812967
tranpoints = 406490
accept = 398937
rejected = 7554
matrix size = 357
fillins = 744
solver = Normal
Thread vector: 42.3/18.1[8] 5.0/8.8[1] 14.0/15.5[1] 1.7/7.1[1] 2592/500
Matrix Compiler1: 50.14 KB object code size 14.5/7.9/[4.0]
Matrix Compiler2: off [5.5]/6.1/54.2
Any help is welcome! with my best regards Thomas
