Part Number:PGA855Other Parts Discussed in Thread: TINA-TI
PGA855需要差分输入,输入电压我是用VIN和GND做差分,在PCB走线的时候也要走差分线吗?可不可以直连VIN,gnd和对应的输出端呢
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此外我通过TINA-TI仿真,发现跟手册中的带宽不太一样,我用±5v供电,截止频率只有1M
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您好,
建议使用差分,为了充分利用 PGA855 的性能,即使输入信号是单端的,也应通过适当的电路转换为差分信号,并在 PCB 上使用差分对走线。这样可以确保信号的完整性和系统的整体性能。
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有测试的带宽的数据吗,±5v下的
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目前仅有规格书的数据
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在给出的TINA_TI参考设计中,进行交流频响,可以发现1MHz时就会衰减3dB,这与手册中的10dB有出入,这是什么情况呢?
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模型通常会简化某些复杂性,如寄生效应、非线性行为等,这些在高频下可能变得显著,导致仿真结果与实际性能有差异。
TRANSLATE with x
English
Arabic
Hebrew
PolishBulgarian
Hindi
PortugueseCatalan
Hmong Daw
RomanianChinese Simplified
Hungarian
RussianChinese Traditional
Indonesian
SlovakCzech
Italian
SlovenianDanish
Japanese
SpanishDutch
Klingon
SwedishEnglish
Korean
ThaiEstonian
Latvian
TurkishFinnish
Lithuanian
UkrainianFrench
Malay
UrduGerman
Maltese
VietnameseGreek
Norwegian
WelshHaitian Creole
PersianTRANSLATE with
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