MAX274EVKIT

4th- and 8th-Order, Continuous-Time Active Filters

Low-Noise Continuous-Time Filters Eliminate Clock Noise and Aliasing


Please check latest availability status for a specific part variant.

Description

The MAX274 and MAX275 are continuous-time active filters consisting of independent cascadable 2nd-order sections. Each section can implement any all-pole bandpass or lowpass filter response, such as Butterworth, Bessel, Chebyshev, and is programmed by four external resistors. The MAX274/MAX275 provide lower noise that switched-capacitor filters, as well as superior dynamic performance—both due to the continuous-time design. Since continuous-time filters do not require a clock, aliased and clock noise are eliminated with the MAX274/MAX275.

The MAX274 comprises of four 2nd-order sections, permitting 8th-order filters to be realized. Center frequencies range up to 150kHZ, and are accurate to within ±1% over the full operating temperature range. Total harmonic distortion (THD) is typically better than -86dB.

The MAX275 comprises of two 2nd-order sections, permitting 4th-order filters to be realized. Center frequencies range up to 300kHZ, and are accurate to within ±0.9% over the full operating temperature range. Total harmonic distortion (THD) is typically better than -86dB.

Both filters operate from a single +5V supply or from dual ±5V supplies.
MAX274, MAX274EVKIT, MAX275: Typical Operating Circuit MAX274, MAX274EVKIT, MAX275: Typical Operating Circuit Enlarge+

Key Features

  • Continuous-TIme Filter - No Clock, No Clock Noise
  • Implement Butterworth, Chebyshev, Bessel and Other Filter Responses
  • Lowpass, Bandpass Outputs
  • Operate from a Single +5V Supply or Dual ±5V Supplies
  • Design Software Available
  • MAX274 Evaluation Kit Available
  • 8th-Order-Four 2nd-Order Sections (MAX274)
  • 4th-Order-Two 2nd-Order Sections (MAX275)
  • Center-Frequency Range:
    • 150kHz for MAX274
    • 300kHz for MAX275
  • Low Noise:
    • -86dB THD Typical for MAX274
    • -89dB THD Typical for MAX275
  • Center-Frequency Accurate Over Temp:
    • within ±1% for MAX274
    • within ±0.9% for MAX275

Applications/Uses

  • Audio/Sonar/Avionics Frequency Filtering
  • DAC Output-Smoothing Filters
  • Low-Distortion Anti-Aliasing Filters
  • Modems
  • Vibration Analysis
Part NumberFilter SectionsOrder Per Filter SectionFilter ClassFilter TypeFilter CharacteristicProgram MethodLowest Cutoff
(Hz)
Highest Cutoff
(kHz)
VSUPPLY (Dual)
(±V)
VSUPPLY
(V)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
maxminDualSee Notes
MAX274 42Continuous
Bandpass
Lowpass
ProgrammableResistor10015055
-55 to +125
-40 to +85
0 to +70
DICE SALES
PDIP/24
SOIC (W)/28
$9.63 @1k
MAX275 2300
PDIP/20
SOIC (W)/20
$5.01 @1k
See All Active Filters (47)
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.


MAX274: 4th- and 8th-Order, Continuous-Time Active Filters
MAX274EVKIT: 4th- and 8th-Order, Continuous-Time Active Filters
MAX275: 4th- and 8th-Order, Continuous-Time Active Filters

Quality and Environmental Data

Lead-Free Package Tin (Sn) Whisker Reports

Additional Resources

MAX274 Design Software
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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