MAXIM MAX275AEWP+

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, and Chebyshev, and is programmed by four external resistors. The MAx274/MAx275 provide lower noise than 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.

• 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
• 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

• Low-Distortion Anti-Aliasing Filters
• DAC Output Smoothing Filters
• Modems
• Audio/Sonar Frequency Filtering
• Vibration Analysis