MAX7401ESA

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 0.2?A.

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.