A method for migrating an electronic circuit from a source technology to a target technology includes accepting a source circuit that operates in the source technology. The source circuit includes source components interconnected at nodes in accordance with a source topology. Source voltages at the nodes of the source circuit are determined, and the source voltages are transformed to produce respective target voltages suitable for the target technology. The source circuit is separated into sub-circuits, each sub-circuit including one or more of the source components. In each sub-circuit individually, the one or more of the source components are converted to one or more respective target components in the target technology responsively to the target voltages, so as to produce a respective migrated sub-circuit. The migrated sub-circuits are reconnected to produce a target circuit in the target technology, the target circuit having a target topology identical to the source topology.