AD7606BSTZ 查看數據表（PDF） - Analog Devices

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AD7606BSTZ

8-/6-/4-Channel DAS with 16-Bit, Bipolar Input, Simultaneous Sampling ADC

Analog Devices 

To ensure good device-to-device performance matching in

a system that contains multiple AD7606/AD7606-6/AD7606-4

devices, a symmetrical layout between the AD7606/AD7606-6/

AD7606-4 devices is important.

Figure 64 shows a layout with two AD7606/AD7606-6/AD7606-4

devices. The AVCC supply plane runs to the right of both devices,

and the VDRIVE supply track runs to the left of the two devices.

The reference chip is positioned between the two devices, and

the reference voltage track runs north to Pin 42 of U1 and south

to Pin 42 of U2. A solid ground plane is used.

These symmetrical layout principles can also be applied to a system

that contains more than two AD7606/AD7606-6/AD7606-4

devices. The AD7606/AD7606-6/AD7606-4 devices can be placed

in a north-south direction, with the reference voltage located

midway between the devices and the reference track running in

the north-south direction, similar to Figure 64.

AD7606/AD7606-6/AD7606-4

AVCC

U2

U1

Figure 64. Layout for Multiple AD7606 Devices—Top Layer and

Supply Plane Layer

Rev. 0 | Page 33 of 36

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