参数资料
型号: AD9248BCPZRL-20
厂商: Analog Devices Inc
文件页数: 40/48页
文件大小: 0K
描述: IC ADC 14BIT DUAL 20MSPS 64LFCSP
标准包装: 2,500
位数: 14
采样率(每秒): 20M
数据接口: 并联
转换器数目: 2
功率耗散(最大): 180mW
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-VFQFN 裸露焊盘,CSP
供应商设备封装: 64-LFCSP-VQ(9x9)
包装: 带卷 (TR)
输入数目和类型: 4 个单端,单极;2 个差分,单极
AD9248
Rev. B | Page 45 of 48
04446-058
Figure 58. PCB Bottom-Side Silkscreen
THERMAL CONSIDERATIONS
The AD9248 LFCSP has an integrated heat slug
that improves the thermal and electrical properties of the
package when locally attached to a ground plane at the PCB.
A thermal (filled) via array to a ground plane beneath the
part provides a path for heat to escape the package, lowering
junction temperature. Improved electrical performance
also results from the reduction in package parasitics due to
proximity of the ground plane. Recommended array is 0.3 mm
vias on 1.2 mm pitch. θJA = 26.4°C/W with this recommended
configuration. Soldering the slug to the PCB is a requirement
for this package.
04446-059
Figure 59. Thermal Via Array
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