Page 254 - DCAP108_DIGITAL_CIRCUITS_AND_LOGIC_DESIGNS

Unit 12: A/D and D/A Converters

saturating “high” in sequence from lowest to highest), the same “highest-order-input selection” Notes
effect may be realized through a set of Exclusive-OR gates, allowing the use of a simpler,
non-priority encoder:

Figure 12.43: Non-priority Encoder

And, of course, the encoder circuit itself can be made from a matrix of diodes, demonstrating just
how simply this converter design may be constructed:
Figure 12.44: Matrix of Diodes

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