Hi,
I'm design a amplifier with a OPA657. When I would simulate the design with de model that you can find in
ERROR -- Convergence problem in bias point calculation
Last node voltages tried were:
NODE VOLTAGE NODE VOLTAGE NODE VOLTAGE NODE VOLTAGE
(N00634) 1.8848 (N00735) -1.8848 (N00885) -2.1145 (N00925)
-.0209
(N01022) 0.0000 (X_U2.10) 1.0518 (X_U2.11)
1.0700(X_U2.12) 2.8169 (X_U2.14) 3.5962
(X_U2.15) 67.3720 (X_U2.17) -1.4889
(X_U2.18) 1.4889 (X_U2.19) -2.1570
(X_U2.20) -1.1148 (X_U2.22) .8426
(X_U2.23) 1.8848 (X_U2.40) 32.84E-18
These supply currents failed to converge:
I(X_U2.E_E32) = -10.00GA \\ -10.00GA I(X_U2.E_E31) = 10.00GA \\ 10.00GA
Try running with .OPTION STEPGMIN
What mean the error? Thaks