General Description

The MAX7480 8th-order, lowpass, Butterworth, switched-capacitor filter (SCF) operates from a single +5V supply. The device draws only 2.9mA of supply current and allows corner frequencies from 1Hz to 2kHz, making it ideal for low-power post-DAC filtering and anti-aliasing applications. The MAX7480 features a shutdown mode, which reduces the supply current to 0.2µA.

Features

♦ 8th-Order, Lowpass Butterworth Filter

♦ Low Noise and Distortion: -73dB THD + Noise

♦ Clock-Tunable Corner Frequency (1Hz to 2kHz)

♦ 100:1 Clock-to-Corner Ratio

♦ +5V Single-Supply Operation

♦ Low Power

   2.9mA (Operating Mode)

   0.2µA (Shutdown Mode)

♦ Available in 8-Pin SO/DIP Package

♦ Low Output Offset: ±5mV

Applications

  ADC Anti-Aliasing

  Post-DAC Filtering