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MAX7401, MAX7405 八階、低通、貝塞爾、開關電容濾波器
MAX7401, MAX7405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.
MAX7401, MAX7405關鍵特性
- +5V (MAX7401)
- +3V (MAX7405)
- 2mA (Operating Mode)
- 0.2µA (Shutdown Mode)
MAX7401, MAX7405應用/使用
| ADC抗混疊 | |
| 氣囊電子裝置 | |
| CT2基站 | |
| DAC后置濾波 | |
| 語音處理 |
MAX7401, MAX7405典型應用電路
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