Активный фильтр MAX7418EUA+

Фильтр с переключаемыми конденсаторами , эллиптический, Низких Частот, 5-ый, 1, 4.5 В, 5.5 В, µMAX

The MAX7418EUA+ is a 5th order low pass, switched capacitor filter in 8 pin µMAX package. This is an elliptic low pass filter provides sharp roll-off with good stop band rejection. It operates with a 100:1 clock to corner frequency ratio. Two clocking options are available on this device, 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. It uses an alternative approach which is to emulate a passive network using switched-capacitor integrators with summing and scaling. It is used in DAC post filtering, air-bag electronics and CT2 base stations.

• Supply voltage range is 4.5V to 5.5V
• Operating temperature range from -40°C to 85°C
• Typical corner frequency range from 0.001KHz to 30KHz at VIN = 4Vp-p
• Clock to corner tempco of 10ppm/°C, typical internal oscillator frequency is 87KHz
• Typical supply current is 2.9mA (operating mode, no load)
• Typical shutdown current is 0.2µA

Области применения

Обработка Сигнала, Аудио