Added test for sensitivity analysis.

tests/sensitivity/Makefile.am

@@ -0,0 +1,12 @@
+## Process this file with automake to produce Makefile.in
+
+
+TESTS = diffpair.cir
+
+TESTS_ENVIRONMENT = $(SHELL) $(top_srcdir)/tests/bin/check.sh $(top_builddir)/src/ngspice
+
+EXTRA_DIST = \
+	$(TESTS)		\
+	$(TESTS:.cir=.out)
+
+MAINTAINERCLEANFILES = Makefile.in

tests/sensitivity/diffpair.cir

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+simple differential pair - CM and DM dc sensitivity
+
+* Models:
+.model qnl npn(bf=80 rb=100 ccs=2pf tf=0.3ns tr=6ns cje=3pf cjc=2pf va=50)
+.model qnr npn(bf=80 rb=100 ccs=2pf tf=0.3ns tr=6ns cje=3pf cjc=2pf va=50)
+
+* Circuit description:
+q1 4 2 6 qnr
+q2 5 3 6 qnl
+rs1 11 2 1k
+rs2 3 1 1k
+rc1 4 8 10k
+rc2 5 8 10k
+q3 7 7 9 qnl
+q4 6 7 9 qnr
+rbias 7 8 20k
+
+* Inputs/Supplies:
+vcm 1 0 dc 0 sin(0 0.1 5meg) ac 1
+vdm 1 11 dc 0 sin(0 0.1 5meg) ac 1
+vcc 8 0 12
+vee 9 0 -12
+
+* Analyses:
+.tf v(5) vcm
+.tf v(5) vdm
+.sens v(5,4)
+
+.print SENS all
+
+.end

tests/sensitivity/diffpair.out

@@ -0,0 +1,171 @@
+
+No. of Data Rows : 1
+
+No. of Data Rows : 1
+
+No. of Data Rows : 1
+
+Circuit: simple differential pair - CM and DM dc sensitivity
+
+Warning -- Level not specified on line "(bf=80 rb=100 ccs=2pf tf=0.3ns tr=6ns cje=3pf cjc=2pf va=50)"
+Using level 1.
+Warning -- Level not specified on line "(bf=80 rb=100 ccs=2pf tf=0.3ns tr=6ns cje=3pf cjc=2pf va=50)"
+Using level 1.
+Doing analysis at TEMP = 300.150000 and TNOM = 300.150000
+Transfer function information:
+transfer_function = -1.10341e-01
+output_impedance_at_v(5) = 9.446843e+03
+vcm#input_impedance = 1.793366e+06
+
+Transfer function information:
+transfer_function = -8.78493e+01
+output_impedance_at_v(5) = 9.446843e+03
+vdm#input_impedance = 8.940897e+03
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   q1:bf           q1:br           q1:eg           q1:fc           
+--------------------------------------------------------------------------------
+0	1.851978e-02	-1.942280e-08	-1.749802e-08	-3.884560e-08	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   q1:is           q1:nc           q1:ne           q1:nf           
+--------------------------------------------------------------------------------
+0	4.549980e+16	-9.711399e-09	-1.294853e-08	-1.339677e+02	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   q1:nr           q1:rb           q1:rbm          q1:tnom         
+--------------------------------------------------------------------------------
+0	-1.942280e-08	-1.487980e-03	1.410876e-04	-6.960475e-01	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   q1:vaf          q1:xti          q1_area         q1_areab        
+--------------------------------------------------------------------------------
+0	-1.143803e-02	-6.474266e-09	4.684669e+00	-1.942280e-08	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   q1_areac        q1_m            q1_temp         q2:bf           
+--------------------------------------------------------------------------------
+0	-1.942280e-08	4.684670e+00	2.497064e-01	-1.851978e-02	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   q2:br           q2:eg           q2:fc           q2:is           
+--------------------------------------------------------------------------------
+0	5.908633e-09	5.323093e-09	1.181727e-08	-4.549980e+16	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   q2:nc           q2:ne           q2:nf           q2:nr           
+--------------------------------------------------------------------------------
+0	2.954316e-09	3.939089e-09	1.339677e+02	5.908633e-09	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   q2:rb           q2:rbm          q2:tnom         q2:vaf          
+--------------------------------------------------------------------------------
+0	1.487980e-03	-1.410877e-04	6.960475e-01	1.143803e-02	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   q2:xti          q2_area         q2_areab        q2_areac        
+--------------------------------------------------------------------------------
+0	1.969544e-09	-4.684669e+00	5.908633e-09	5.908633e-09	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   q2_m            q2_temp         q3:bf           q3:br           
+--------------------------------------------------------------------------------
+0	-4.684670e+00	-2.497064e-01	3.970467e-18	3.534097e-22	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   q3:eg           q3:fc           q3:is           q3:nc           
+--------------------------------------------------------------------------------
+0	2.729032e-22	6.058452e-22	6.776264e+01	1.514613e-22	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   q3:ne           q3:nf           q3:nr           q3:rb           
+--------------------------------------------------------------------------------
+0	2.019484e-22	-1.897354e-13	3.029226e-22	-3.705769e-18	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   q3:rbm          q3:tnom         q3:vaf          q3:xti          
+--------------------------------------------------------------------------------
+0	9.693523e-23	-1.003891e-15	-4.135903e-21	1.009742e-22	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   q3_area         q3_areab        q3_areac        q3_m            
+--------------------------------------------------------------------------------
+0	6.776264e-15	3.029226e-22	3.029226e-22	7.623297e-15	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   q3_temp         q4:bf           q4:br           q4:eg           
+--------------------------------------------------------------------------------
+0	3.764591e-16	-5.955700e-18	1.009742e-22	9.096774e-23	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   q4:fc           q4:is           q4:nc           q4:ne           
+--------------------------------------------------------------------------------
+0	2.019484e-22	-6.776264e+01	5.048710e-23	6.731613e-23	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   q4:nf           q4:nr           q4:rb           q4:rbm          
+--------------------------------------------------------------------------------
+0	2.168404e-13	1.009742e-22	4.235165e-18	-7.940934e-19	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   q4:tnom         q4:vaf          q4:xti          q4_area         
+--------------------------------------------------------------------------------
+0	1.129377e-15	2.541099e-17	3.365807e-23	-6.776264e-15	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   q4_areab        q4_areac        q4_m            q4_temp         
+--------------------------------------------------------------------------------
+0	1.009742e-22	1.009742e-22	-7.623297e-15	-3.764591e-16	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   rbias           rbias_m         rbias_scale     rc1             
+--------------------------------------------------------------------------------
+0	3.811648e-19	-7.623297e-15	7.623297e-15	6.031558e-04	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   rc1_m           rc1_scale       rc2             rc2_m           
+--------------------------------------------------------------------------------
+0	-6.031564e+00	6.031558e+00	-6.031558e-04	6.031564e+00	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   rc2_scale       rs1             rs1_m           rs1_scale       
+--------------------------------------------------------------------------------
+0	-6.031558e+00	-1.346892e-03	1.346894e+00	-1.346892e+00	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   rs2             rs2_m           rs2_scale       vcc             
+--------------------------------------------------------------------------------
+0	1.346892e-03	-1.346894e+00	1.346892e+00	0.000000e+00	
+
+              simple differential pair - CM and DM dc sensitivity
+--------------------------------------------------------------------------------
+Index   vcm             vdm             vee             
+--------------------------------------------------------------------------------
+0	1.290931e-13	-1.758090e+02	4.235165e-16	
+
+
+
+