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介紹 SIGMA-DELTA 基本理論
) F5 j {& x+ L8 T0 Q% W4 ISIGMA-DELTA (SD) MEASUREMENT ADCS
3 P) G) }1 b" U3 QSIGMA-DELTA ADCs: a# o9 s! U7 r$ G/ D7 s
Low Cost, High Resolution (to 24-bits) Excellent DNL,
- O* O3 i0 [7 e9 q5 i, H Low Power, but Limited Bandwidth
. H* s* e$ H) Y% }* J9 }7 a Key Concepts are Simple, but Math is Complex
0 J- r# c* ~! H* M Oversampling
# i0 _* ^/ g6 o3 @. h V7 ? Quantization Noise Shaping
5 B1 a9 \/ n) y/ a5 t" f Digital Filtering' i& N. W9 l: F P v
Decimation. l+ ~; U0 k G- x& A
Ideal for Sensor Signal Conditioning
1 x; V0 b" s% n5 g6 _% _: j High Resolution( U1 z3 i) L% ?
Self, System, and Auto Calibration Modes
# V( X) T8 R/ D5 W6 V0 ^# ]# F& r+ p- k
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