Active Filter Single SW-CAP Low Pass 8th Order 5kHz 8-Pin SOIC N

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 0.2µA. 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.

• 8th-Order, Lowpass Bessel Filters
• Low Noise and Distortion:-82dB THD + Noise
• Clock-Tunable Corner Frequency (1Hz to 5kHz)
• 100:1 Clock-to-Corner Ratio
• Single-Supply Operation
  • +5V (MAX7401)
  • +3V (MAX7405)

Low Power

• 2mA (Operating Mode)
• 0.2µA (Shutdown Mode)

Available in 8-Pin SO/DIP Packages

Low Output Offset:±5mV