The MAX274 and MAX275BEWP-T 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/MAX275BEWP-T 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 MAX275BEWP-T 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.
性格描写
- 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
適用分野
- Audio/Sonar/Avionics Frequency Filtering
- DAC Output-Smoothing Filters
- Low-Distortion Anti-Aliasing Filters
- Modems
- Vibration Analysis
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技術パラメーター
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Number of Channels
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1
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Cutoff Frequency
-
300 kHz
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最大電源電圧
-
11 V
-
電源電圧 Min
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4.74 V
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最高使用温度
-
+ 85 C
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マウントスタイル
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SMD/SMT
-
パッケージ/ケース
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SOIC-20 Wide
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パッケージング
-
リール
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最低使用温度
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- 40 C
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動作電源電圧
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5 V
MAX275BEWP-T Datasheet
-
MAX275 data sheet for guidance
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