MAX7412

5th Order, Lowpass, Elliptic, Switched-Capacitor Filters

Smallest, Low-Power 5th-Order Filters


Please check latest availability status for a specific part variant.

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.

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 MAX7408/MAX7412 deliver 53dB of stopband rejection and a sharp rolloff with a transition ratio of 1.6. The MAX7411/MAX7415 achieve a sharper rolloff with a transition ratio of 1.25 while still providing 37dB of stop-band rejection. Their fixed response limits the design task to selecting a clock frequency.
MAX7408, MAX7411, MAX7412, MAX7415: Typical Operating Circuit MAX7408, MAX7411, MAX7412, MAX7415: Typical Operating Circuit Enlarge+

Key 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/Uses

  • ADC Anti-Aliasing
  • CT2 Base Stations
  • Post-DAC Filtering
  • Speech Processing
Part NumberFilter SectionsOrder Per Filter SectionFilter ClassFilter TypeFilter CharacteristicProgram MethodLowest Cutoff
(Hz)
Highest Cutoff
(kHz)
VSUPPLY
(V)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
maxminSee Notes
MAX7408 15Switched CapLowpassEllipticClock1155
-40 to +85
0 to +70
PDIP/8
UMAX/8
$2.25 @1k
MAX7411 5
PDIP/8
UMAX/8
$2.13 @1k
MAX7412 3
PDIP/8
UMAX/8
$3.06 @1k
MAX7415 3
PDIP/8
UMAX/8
$2.03 @1k
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAXFILTERBRD: Evaluation Kit for the MAX7408, MAX7409, MAX7410, MAX7411, MAX7412, MAX7413, MAX7414, MAX7415, MAX7418, MAX7419, MAX7420, MAX7421, MAX7422, MAX7423, MAX7424, and MAX7425

Tools & Models

  • EE-Sim: Design & Simulate MAX7412
  • CAD Symbols and Footprints

  • MAX7412CPA+
  • MAX7412CUA
  • MAX7412CUA+
  • MAX7412CUA+T
  • MAX7412CUA-T
  • MAX7412EUA
  • MAX7412EUA+
  • MAX7412EUA+T
  • MAX7412EUA-T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    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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