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AD7607 数据表(PDF) 31 Page - Analog Devices |
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AD7607 数据表(HTML) 31 Page - Analog Devices |
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31 / 32 page ![]() Data Sheet AD7608 Rev. A | Page 31 of 32 To ensure good device-to-device performance matching, in a system that contains multiple AD7608 devices, a symmetrical layout between the AD7608 devices is important. Figure 61 shows a layout with two devices. The AVCC supply plane runs to the right of both devices. The VDRIVE supply track runs to the left of the two devices. The reference chip is positioned between both the two devices and the reference voltage track runs north to Pin 42 of U1 and south to Pin 42 to U2. A solid ground plane is used. These symmetrical layout principles can be applied to a system that contains more than two AD7608 devices. The AD7608 devices can be placed in a north-south direction with the reference voltage located midway between the AD7608 devices with the reference track running in the north-south direction similar to Figure 61. AVCC U2 U1 U2 U1 Figure 61. Layout for Multiple AD7608 Devices—Top Layer and Supply Plane Layer |
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