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Chapter 3: Instrument Circuitry
Reference 600+ Schematics and Block Diagrams
If you are not familiar with electronic schematics or potentiostats, you probably want to skip this chapter.
This information is for expert use only and is not required for routine use of the Reference 600+.
The following figures are partly schematic diagrams and partly block diagrams. They are intended to show
the basic principles of the Reference 600+ without the confusion of the full circuitry details. The
complexity of the Reference 600+ can be quite daunting: the Reference 600+ circuit boards contain
more than 2500 components connected by almost 2000 circuit nets!
The schematic/block diagram figures show:
• The potentiostat board in its potentiostatic control mode,
• The control-board circuits for signal generation,
• The control-board circuits for signal conditioning and A/D conversion,
• The Auxiliary ADC channel-input switching,
• The processors in the Reference 600+, and
• DC-DC power conversion.
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