700-MAX7403ESA

The MAX7400/MAX7403/MAX7404/MAX7407 8th-order,

lowpass, elliptic, switched-capacitor filters (SCFs) operate

from a single +5V (MAX7400/MAX7403) or +3V

(MAX7404/MAX7407) supply. These devices draw 2mA

of supply current and allow corner frequencies from

1Hz to 10kHz, making them ideal for low-power antialiasing

and post-DAC filtering applications. They feature

a shutdown mode that reduces the supply current

to 0.2?A.

Two clocking options are available: self-clocking

(through the use of an external capacitor) or external

clocking for tighter cutoff-frequency control. In addition,

an offset adjustment pin (OS) allows for the adjustment

of the DC output level.

The MAX7400/MAX7404 provide 82dB of stopband

rejection and a sharp rolloff with a transition ratio of 1.5.

The MAX7403/MAX7407 provide a sharper rolloff with a

transition ratio of 1.2, while still delivering 60dB of stopband

rejection. The fixed response of these devices

simplifies the design task to corner-frequency selection

by setting a clock frequency. The MAX7400/

MAX7403/MAX7404/MAX7407 are available in 8-pin SO