参数资料
型号: ADA4922-1ACPZ-RL
厂商: Analog Devices Inc
文件页数: 10/20页
文件大小: 0K
描述: IC ADC DRIVER 18BIT DIFF 8-LFCSP
标准包装: 5,000
类型: ADC 驱动器
应用: 数据采集
安装类型: 表面贴装
封装/外壳: 8-VFDFN 裸露焊盘,CSP
供应商设备封装: 8-LFCSP-VD(3x3)
包装: 带卷 (TR)
ADA4922-1
Rev. 0 | Page 18 of 20
PRINTED CIRCUIT BOARD LAYOUT
CONSIDERATIONS
Although the ADA4922-1 is used in many applications
involving frequencies that are well below 1 MHz, some general
high speed layout practices must be adhered to because it is a
high speed amplifier. Controlled impedance transmission lines
are not required for low frequency signals, provided the signal
rise times are longer than approximately 5 times the electrical
delay of the interconnections. For reference, typical 50 Ω
transmission lines on FR-4 material exhibit approximately
140 ps/in delay on outer layers and 180 ps/in for inner layers.
Most connections between the ADA4922-1 and the
ADC can be kept very short.
Broadband power supply decoupling networks should be placed
as close as possible to the supply pins. Small surface-mount
ceramic capacitors are recommended for these networks, and
tantalum capacitors are recommended for bulk supply
decoupling.
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