MAX7409

5th-Order, Lowpass, Switched-Capacitor Filters

Smallest, Low-Power 5th-Order Filters


Please check latest availability status for a specific part variant.

Description

The MAX7409/MAX7410/MAX7413/MAX7414 5th-order, lowpass, switched-capacitor filters (SCFs) operate from a single +5V (MAX7409/MAX7410) or +3V (MAX7413/ MAX7414) supply. These 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 feature a shutdown mode, which reduces the 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 MAX7409/MAX7413 Bessel filters provide low overshoot and fast settling, while the MAX7410/MAX7414 Butterworth filters provide a maximally flat passband response. Their fixed response simplifies the design task to selecting a clock frequency.
MAX7409, MAX7410, MAX7413, MAX7414: Typical Operating Circuit MAX7409, MAX7410, MAX7413, MAX7414: Typical Operating Circuit Enlarge+

Key Features

  • 5th-Order Lowpass Filters
    • Bessel Response (MAX7409/MAX7413)
    • Butterworth Response (MAX7410/MAX7414)
  • Clock-Tunable Corner Frequency (1Hz to 15kHz)
  • Single-Supply Operation
    • +5V (MAX7409/MAX7410)
    • +3V (MAX7413/MAX7414)
  • Low Power
    • 1.2mA (operating mode)
    • 0.2µA (shutdown mode)
  • Available in 8-Pin µMAX®/DIP Packages
  • Low Output Offset: ±4mV
  • Single 5th-order, Bessel and Butterworth switched-capacitor filters. 15kHz maximum F (c)

Applications/Uses

  • ADC Anti-Aliasing
  • Air-Bag Electronics
  • CT2 Base Stations
  • DAC Post-Filtering
  • Speech Processing

MAXFILTERBRD: Evaluation Kit for the MAX7408, MAX7409, MAX7410, MAX7411, MAX7412, MAX7413, MAX7414, MAX7415, MAX7418, MAX7419, MAX7420, MAX7421, MAX7422, MAX7423, MAX7424, and MAX7425
Request Reliability Report for: MAX7409 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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