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固定增益运算放大器简化滤波器设计

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摘要:使用设计的Sallen-Key滤波器时,元件数量少,金钱,和电路板空间。简化与带通滤波器固定增益amplfiers的。
Maxim > App Notes > AMPLIFIER AND COMPARATOR CIRCUITS

Keywords: low pass filters, high pass filters, filter designs, op amps as filters, Sallen-Key filter Jan 22, 2001

APPLICATION NOTE 700
Fixed-Gain Op Amps Simplify Filter Design

Abstract: Use less component count, money, and board space when designing Sallen-Key filters. Simplify band pass
filters with fixed gain amplfiers.


Simple second-order filters meet many filtering requirements. A low-order low-pass filter, for example, is often
adequate for antialiasing in ADC applications or for eliminating high-frequency noise in audio applications. Similarly, a
low-order high-pass filter can easily remove power-supply noise. When you design such filters with built-in gain, fixed-
gain op amps can save space, cost, and time. Figur……
标签:MaximlowpassfiltershighpassfiltersfilterdesignsopampsasfiltersSallen-Keyfilter
固定增益运算放大器简化滤波器设计
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