SBVS020C September 2000 – February 2020 REF200
The three circuit sections of the REF200 are electrically isolated from one another, using a dielectrically-isolated fabrication process. A substrate connection is provided (pin 6), which is isolated from all circuitry. This pin should be connected to a defined circuit potential to assure rated DC performance. The preferred connection is to the most negative constant potential in the system. In most analog systems, this would be –VS. For best ac performance, leave pin 6 open and leave unused sections unconnected. Figure 10 shows the simplified circuit diagram of the REF200.