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diff --git a/testsuite/vests/vhdl-ams/ashenden/compliant/analog-modeling/inverting_integrator.vhd b/testsuite/vests/vhdl-ams/ashenden/compliant/analog-modeling/inverting_integrator.vhd
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+
+-- Copyright (C) 2002 Morgan Kaufmann Publishers, Inc
+
+-- This file is part of VESTs (Vhdl tESTs).
+
+-- VESTs is free software; you can redistribute it and/or modify it
+-- under the terms of the GNU General Public License as published by the
+-- Free Software Foundation; either version 2 of the License, or (at
+-- your option) any later version. 
+
+-- VESTs is distributed in the hope that it will be useful, but WITHOUT
+-- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+-- FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+-- for more details. 
+
+-- You should have received a copy of the GNU General Public License
+-- along with VESTs; if not, write to the Free Software Foundation,
+-- Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+
+library ieee_proposed;  use ieee_proposed.electrical_systems.all;
+                        
+entity inverting_integrator is 
+  port ( terminal input, output : electrical );
+end entity inverting_integrator;
+
+----------------------------------------------------------------
+
+architecture structural of inverting_integrator is
+  terminal internal : electrical;
+begin
+  
+  r1 : entity work.resistor(ideal)
+    port map ( node1 => input, node2 => internal ) ;
+        
+  c1 : entity work.capacitor(leakage)
+    port map ( node1 => internal, node2 => output );
+        
+  amp : entity work.opamp(slew_limited)
+    port map ( plus_in => electrical_ref, minus_in => internal,
+               output => output );
+        
+end architecture structural;