MAX7405 - 八阶、低通、贝塞尔、开关电容滤波器

MAX7405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，MAX7405是八阶、低通、贝塞尔、开关电容滤波器，本站介绍了MAX7405的封装应用图解、特点和优点、功能等，并给出了与MAX7405相关的Maxim元器件型号供参考。

MAX7405 - 八阶、低通、贝塞尔、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、8阶贝塞尔滤波器 - 美信半导体

产品概述

The MAX7401/MAX7405 8th-order, lowpass, Bessel, switched-capacitor filters (SCFs) operate from a single +5V (MAX7401) or +3V (MAX7405) supply. These devices draw only 2mA of supply current and allow corner frequencies from 1Hz to 5kHz, 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 on these devices: 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 MAX7401/MAX7405 Bessel filters provide low overshoot and fast settling. Their fixed response simplifies 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：

8th-Order, Lowpass Bessel Filters

Low Noise and Distortion: -82dB THD + Noise

Clock-Tunable Corner Frequency (1Hz to 5kHz)

100:1 Clock-to-Corner Ratio

Single-Supply Operation

+5V (MAX7401)

+3V (MAX7405)

Low Power

2mA (Operating Mode)

0.2µA (Shutdown Mode)

Available in 8-Pin SO/DIP Packages

Low Output Offset: ±5mV

热门应用

ADC抗混叠

气囊电子装置

CT2基站

DAC后置滤波

语音处理

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