參數資料
型號: AD7608BSTZ
廠商: Analog Devices Inc
文件頁數: 25/32頁
文件大?。?/td> 0K
描述: IC DAS W/ADC 18BIT 8CH 64LQFP
特色產品: A/D Converters
標準包裝: 1
類型: 數據采集系統(tǒng)(DAS),ADC
分辨率(位): 18 b
采樣率(每秒): 200k
數據接口: DSP,MICROWIRE?,并聯,QSPI?,串行,SPI?
電壓電源: 模擬和數字
電源電壓: 2.3 V ~ 5.25 V,4.75 V ~ 5.25 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-LQFP
供應商設備封裝: 64-LQFP(10x10)
包裝: 托盤
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
AVCC
U2
U1
U2
U1
08938-
053
Figure 61. Layout for Multiple AD7608 Devices—Top Layer and
Supply Plane Layer
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