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Maxim产品 - MAX7423介绍
MAX7423 - 五阶、低通、开关电容滤波器

MAX7423是Maxim美信半导体公司的一款滤波器(连续模式和开关电容)产品,MAX7423是五阶、低通、开关电容滤波器,本站介绍了MAX7423的封装应用图解、特点和优点、功能等,并给出了与MAX7423相关的Maxim元器件型号供参考。

MAX7423 - 五阶、低通、开关电容滤波器 - 滤波器(连续模式和开关电容) - Maxim美信半导体高性能芯片品质 - 美信半导体

产品概述

The MAX7418–MAX7425 5th-order, low-pass, switched-capacitor filters (SCFs) operate from a single +5V (MAX7418–MAX7421) or +3V (MAX7422–MAX7425) supply. These devices draw only 3mA of supply current and allow corner frequencies from 1Hz to 45kHz, making them ideal for low-power post-DAC filtering and anti-aliasing applications. They feature a shutdown mode that reduces supply current to 0.2µA.

Two clocking options are available: self-clocking (through the use of an external capacitor), or external clocking for tighter corner-frequency control. An offset adjust pin allows for adjustment of the DC output level.

The MAX7418/MAX7422 deliver 53dB of stopband rejection and a sharp rolloff with a 1.6 transition ratio. The MAX7421/MAX7425 achieve a sharper rolloff with a 1.25 transition ratio while still providing 37dB of stopband rejection. The MAX7419/MAX7423 Bessel filters provide low overshoot and fast settling, and the MAX7420/MAX7424 Butterworth filters provide a maximally flat passband response. Their fixed response simplifies the design task of selecting a clock frequency.

关键特性
  • 以下关键特性由Maxim美信半导体提供:
  • 5th-Order, Lowpass Filters
  • Elliptic Response (MAX7418/MAX7421/MAX7422/MAX7425)
  • Bessel Response (MAX7419/MAX7423)
  • Butterworth Response (MAX7420/MAX7424)
  • Clock-Turnable Corner Frequency (1Hz to 45kHz)
  • Single-Supply Operation
  • +5V (MAX7418–MAX7421)
  • +3V (MAX7422–MAX7425)
  • Low Power
  • 3mA (Operating Mode)
  • 0.2µA (Shutdown Mode)
  • Available in 8-Pin µMAX® Package
  • Low Output Offset: ±4mV
  • 热门应用
  • ADC抗混叠
  • CT2基站
  • DAC后置滤波
  • 语音处理
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