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MCP6547T-I/SL Datasheet(PDF) 16 Page - Microchip Technology |
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MCP6547T-I/SL Datasheet(HTML) 16 Page - Microchip Technology |
16 / 32 page ![]() MCP6546/6R/6U/7/8/9 DS21714E-page 16 © 2006 Microchip Technology Inc. 4.9 Unused Comparators An unused amplifier in a quad package (MCP6549) should be configured as shown in Figure 4-8. This circuit prevents the output from toggling and causing crosstalk. It uses the minimum number of components and draws minimal current (see Figure 2-15 and Figure 2-18). FIGURE 4-8: Unused Comparators. 4.10 Typical Applications 4.10.1 PRECISE COMPARATOR Some applications require higher DC precision. An easy way to solve this problem is to use an amplifier (such as the MCP6041) to gain-up the input signal before it reaches the comparator. Figure 4-9 shows an example of this approach. FIGURE 4-9: Precise Inverting Comparator. 4.10.2 WINDOWED COMPARATOR Figure 4-10 shows one approach to designing a windowed comparator. The wired-OR connection produces a high output (logic 1) when the input voltage is between VRB and VRT (where VRT > VRB). FIGURE 4-10: Windowed Comparator. ¼ MCP6549 VDD – + VREF VDD VDD R1 R2 VOUT VIN VREF VPU RPU MCP6546 MCP6041 VRT 1/2 VRB VIN VPU RPU VOUT MCP6547 1/2 MCP6547 |
Similar Part No. - MCP6547T-I/SL |
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Similar Description - MCP6547T-I/SL |
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