MAX7426CPA 5th Order, Low Pass Filter

6,50 -inc.VAT

The MAX7426/MAX7427 5th-order, lowpass, elliptic, switched-capacitor filters (SCFs) operate from a single +5V (MAX7426) or +3V (MAX7427) supply. The devices draw only 0.8mA of supply current and allow corner frequencies from 1Hz to 12kHz, 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.

2 in stock

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Description

The MAX7426/MAX7427 5th-order, lowpass, elliptic, switched-capacitor filters (SCFs) operate from a single +5V (MAX7426) or +3V (MAX7427) supply. The devices draw only 0.8mA of supply current and allow corner frequencies from 1Hz to 12kHz, 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.

Two clocking options are available: self-clocking (through the use of an external capacitor) or external clocking for tighter cutoff-frequency control. An offset-adjust pin allows for adjustment of the DC output level.

The MAX7426/MAX7427 deliver 37dB of stopband rejection and a sharp rolloff with a transition ratio of 1.25. Their fixed response limits the design task to selecting a clock frequency.

Key Features

  • 5th-Order, Elliptic Lowpass Filters
  • Low Noise and Distortion: -80dB THD + Noise
  • Clock-Tunable Corner Frequency (1Hz to 12kHz)
  • Single-Supply Operation
    • +5V (MAX7426)
    • +3V (MAX7427)
  • Low Power
    • 0.8mA (Operating Mode)
    • 0.2µA (Shutdown Mode)
  • Available in 8-Pin µMAX®/PDIP Packages
  • Low Output Offset: ±4mV