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Maxq7667 user’s guide – Maxim Integrated MAXQ7667 User Manual

Page 234

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MAXQ7667 User’s Guide

Figure 14-1. SAR ADC Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-3

Figure 14-2. Equivalent Input Circuit (Track/Acquisition Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . .14-11

Figure 14-3. Equivalent Input Circuit (Hold/Conversion Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . .14-11

Figure 14-4. Unipolar Transfer Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-12

Figure 14-5. Bipolar Transfer Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-13

Figure 14-6. Analog Input Range Measuring a Positive Analog Input Value . . . . . . . . . . . . . . . .14-14

Figure 14-7. Analog Input Range Measuring a Negative Analog Input Value . . . . . . . . . . . . . . .14-14

Figure 14-8. Single-Edge ADC Conversion Timing; ADC Previously Off . . . . . . . . . . . . . . . . . . . .14-17

Figure 14-9. Single-Edge ADC Conversion Timing; ADC Previously On . . . . . . . . . . . . . . . . . . . .14-18

Figure 14-10. Dual-Edge ADC Conversion Timing; ADC Previously Off . . . . . . . . . . . . . . . . . . . .14-18

Figure 14-11. Setting Up and Using the ADC Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-20

Table 14-1. SAR ADC Module Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-4

Table 14-2. Unipolar Code Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-12

Table 14-3. Bipolar Code Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-13

Table 14-4. ADC Conversion Start Source Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-15

Table 14-5. ADC Dual- and Single-Edge Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-16

LIST OF TABLES

LIST OF FIGURES