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介紹 SIGMA-DELTA 基本理論: u1 v- H* A8 s1 j% U
SIGMA-DELTA (SD) MEASUREMENT ADCS
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) k8 I; x& M! M# W Low Cost, High Resolution (to 24-bits) Excellent DNL,9 @/ G4 @' g% p+ w, L$ n2 M
Low Power, but Limited Bandwidth1 E$ a, g, V/ b7 Q: A
Key Concepts are Simple, but Math is Complex
6 U" r U6 K6 b! e- I8 M8 I- Q Oversampling8 K" X% C4 ?$ X+ Q
Quantization Noise Shaping
H$ {" w6 e7 n6 v0 I# {$ l. V Digital Filtering) o" _" U% S# O- z2 X! c
Decimation6 |8 L8 \- `; x& U
Ideal for Sensor Signal Conditioning
6 ~, x" s) T) X O: P0 Z High Resolution. b4 @. v1 u# ]& V t& {
Self, System, and Auto Calibration Modes
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