Gas Chromatography - Data Acquisition and Processing > The A/D Converter > Page 48

The A/D Converter

After scaling, the signal must be converted to digital form. There are a number of ways to digitize and only one, the simplest will be described. A diagram showing the operating principle of an voltage/frequenc V/F type A/D converter is shown in figure 32.

Figure 32. The Basic V/F Analog–to–Digital Converter.