General Description

The MAX7408/MAX7411/MAX7412/MAX7415 5th-order, lowpass, elliptic, switched-capacitor filters (SCFs) operate from a single +5V (MAX7408/MAX7411) or +3V (MAX7412/MAX7415) supply. The devices draw only 1.2mA of supply current and allow corner frequencies from 1Hz to 15kHz, making them ideal for low-power post-DAC filtering and anti-aliasing applications. They can be put into a low-power mode, reducing supply current to 0.2µA.

Features

♦ 5th-Order, Elliptic Lowpass Filters

♦ Low Noise and Distortion: -80dB THD + Noise

♦ Clock-Tunable Corner Frequency (1Hz to 15kHz)

♦ Single-Supply Operation

   +5V (MAX7408/MAX7411)

   +3V (MAX7412/MAX7415)

♦ Low Power

   1.2mA (operating mode)

   0.2µA (shutdown mode)

♦ Available in 8-Pin µMAX/DIP Packages

♦ Low Output Offset: ±4mV

Applications

  ADC Anti-Aliasing

  CT2 Base Stations

  Post-DAC Filtering

  Speech Processing