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AN629 Datasheet(PDF) 5 Page - Maxim Integrated Products |
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AN629 Datasheet(HTML) 5 Page - Maxim Integrated Products |
5 / 6 page Figure 6. Plot of Figure 5 circuit of reference voltage output versus pot A and pot B (32-by-32 taps used instead of 256-by-256 taps for clarity) Summary Three circuit topologies were presented that provide the capability to digitally adjust the MAX6160's output voltage. The first topology provides the capability to coarsely adjust the output voltage over a wide range using a 32- or 256-tap digital pot. The second topology is capable of finely adjusting the output voltage about a single output voltage by using two fixed resistors and a 32-tap digital pot. The third topology can finely tune the output voltage over a wide range by using a dual, 256-tap digital pot. Table 2 summarizes the initial accuracy for each circuit presented. Table 2. Summary of Initial Accuracy Digital Pot Features Output Voltage MAX5462 32T, 100 Kilohms MAX5401 256T, 100 Kilohms MAX5160 32T, 50 Kilohms, Two Resistors MAX5415 256T, 100 Kilohms, Dual 2.048V 5% 0.6% 0.5% 0.06% 2.500V 7% 0.8% 0.5% 0.03% 4.096V 11% 1.3% 0.5% 0.08% |
Similar Part No. - AN629 |
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Similar Description - AN629 |
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