TI中文支持网Part Number:ADS1284Other Parts Discussed in Thread: ADS1283
1. In the ADS1284 configured at 4000 SPS with PGA and chopping enabled, an internal 400-Ω short path was used to measure input-referred noise. When optimizing idle tones via ID_CFG’s OFFSET[1:0] (set to 100 mV/PGA and 75 mV/PGA), a noise increase of ~0.3 µVrms was observed in ~5% of samples. Further investigation is needed to determine if this stems from offset calibration dynamics or chopper-modulated noise
2. In the above case, set the OFFSET[1:0] in the ID_CFG to Offset disabled, and Input Referred Noise to the normal value.
3.However, this situation does not have this problem in ADS1283 and ADS1283B, and the Input Referred Noise can be optimized after setting 100/PGA mV/75/PGA mV, but the opposite is true for ADS1284.
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FRANK1：
感谢您对TI产品的关注！已经收到了您的案例，调查需要些时间，感谢您的耐心等待
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我想问题是为什么噪音不同？请记住，噪声值是典型的（我们几乎从不指定噪声的最小值/最大值），而+/-20%的典型值不是
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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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