MAX7408 - 五阶、低通、椭圆函数、开关电容滤波器

MAX7408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，MAX7408是五阶、低通、椭圆函数、开关电容滤波器，本站介绍了MAX7408的封装应用图解、特点和优点、功能等，并给出了与MAX7408相关的Maxim元器件型号供参考。

MAX7408 - 五阶、低通、椭圆函数、开关电容滤波器 - 滤波器(连续模式和开关电容) - 尺寸最小的低功耗5阶滤波器 - 美信半导体

产品概述

The MAX7408/MAX7411/MAX7412/MAX7415 5th-order, lowpass, elliptic, switched-capacitor filters (SCFs) operate from a single +5V (MAX7408/MAX7411) or +3V (MAX7412/MAX7415) supply. The devices draw only 1.2mA of supply current and allow corner frequencies from 1Hz to 15kHz, making them ideal for low-power post-DAC filtering and anti-aliasing applications. They can be put into a low-power mode, reducing supply current to 0.2µA.

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

The MAX7408/MAX7412 deliver 53dB of stopband rejection and a sharp rolloff with a transition ratio of 1.6. The MAX7411/MAX7415 achieve a sharper rolloff with a transition ratio of 1.25 while still providing 37dB of stop-band rejection. Their fixed response limits the design task to 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, Elliptic Lowpass Filters

Low Noise and Distortion: -80dB THD + Noise

Clock-Tunable Corner Frequency (1Hz to 15kHz)

Single-Supply Operation

+5V (MAX7408/MAX7411)

+3V (MAX7412/MAX7415)

Low Power

1.2mA (operating mode)

0.2µA (shutdown mode)

Available in 8-Pin µMAX®/DIP Packages

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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