AD7609BSTZ Analog Devices Inc, AD7609BSTZ Datasheet - Page 33

• Manufacturer Part Number: AD7609BSTZ
• Description: 58T8900
• Manufacturer: Analog Devices Inc

Specifications of AD7609BSTZ

• Resolution (bits): 18bit
• Sampling Rate: 250kSPS
• Input Channel Type: Differential
• Data Interface: Serial, SPI
• Supply Voltage Range - Analog: 4.75V To 5.25V
• Rohs Compliant: Yes

AD7609
To ensure good device-to-device performance matching in a
system that contains multiple
AD7609
devices, a symmetrical
layout between the
AD7609
devices is important. Figure 62
shows a layout with two
AD7609
devices. The AV
supply
CC
plane runs to the right of both devices. The V
supply track
DRIVE
runs to the left of the two
AD7609
devices. The reference chip
is positioned between both
AD7609
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
AD7609
devices. The
AD7609
devices can be placed in a
north-to-south direction with the reference voltage located
midway between the
AD7609
devices and the reference track
running in the north-to-south direction similar to Figure 62.
Figure 62. Multiple
AD7609
Layout, Top Layer and Supply Plane Layer
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