Figure 4.1 Computerized data-acquisition system.

Figure 4.2 Data-acquisition board with eight analog input channels and two analog output channels also showing an analog signal connection box. Manufactured by National Instruments.

Figure 4.3 Typical computer system.

Figure 4.4 Four-channel analog multiplexer (channel 1 connected).

Figure 4.5 Ramp A/D converter process.

Figure 4. 6 Single-slope integrating A/D converter circuit Figure 4.6 Single-slope integrating A/D converter circuit. (Based on Turner, 1988.)

Figure 4.7 Formulas to estimate A/D converter digital output.

Figure 4.8 Graphical description of the method of successive approximations for a 4-bit A/D converter. Based on Franco (2002).

Figure 4. 9 Block diagram of a successive-approximations A/D converter Figure 4.9 Block diagram of a successive-approximations A/D converter. Copyright 1990 Instrument Society of America. From Computer-based Data Acquisition Systems by J.Taylor.

Figure 4. 10 Block diagram of a parallel A/D converter. Based on S Figure 4.10 Block diagram of a parallel A/D converter. Based on S. Franco, Design with Operational Amplifiers and Analog Integrated Circuits, McGraw-Hill, 1988. Used with permission of McGraw-Hill Inc.

Figure 4.11 Block diagram of a dual-slope integrating A/D converter: (a) block diagram; (b) integration process. Copyright 1990 Instrument Society of America. From Computer-based Data Acquisition Systems by J.Taylor.

Figure 4.12 Digital-to-analog converter. (Based on Turner, 1988.)

Figure 4.13 Simultaneous sample and hold subsystem.

Figure 4.14 Block diagram of a digital storage oscilloscope.