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介紹 SIGMA-DELTA 基本理論
, F! A( E* ~8 s6 iSIGMA-DELTA (SD) MEASUREMENT ADCS
: T& }$ I6 A& ~1 u0 eSIGMA-DELTA ADCs
* F6 p$ x' a+ B; ]5 Y Low Cost, High Resolution (to 24-bits) Excellent DNL,+ r/ {# ~! O8 W/ C
Low Power, but Limited Bandwidth
9 n% H0 K, G% ~7 R D: `# T Key Concepts are Simple, but Math is Complex) @' R4 r* m. ]) f: s
Oversampling
1 f0 T+ w' I/ { Quantization Noise Shaping
; h* w4 Z7 m9 A Digital Filtering
, b8 l, X4 b! n0 a# }; p1 t Decimation( \& b- _* v3 t1 n, F
Ideal for Sensor Signal Conditioning
* s) m E2 @9 i, p/ q High Resolution
* `7 d( M$ ~$ P4 j Self, System, and Auto Calibration Modes- A6 c, x1 w4 o2 [* Z$ j
" u+ C" w" ]" V8 @) M
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