MAX274, MAX274EVKIT

四阶及八阶、连续时间方式有源滤波器

低噪声连续时间滤波器,可消除时钟噪声和混叠


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说明

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:典型工作电路 MAX274、MAX274EVKIT、MAX275:典型工作电路 放大+

关键特性

  • 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

应用

  • 音频/声纳/航空电子频率滤波
  • DAC输出平滑滤波器
  • 低失真抗混叠滤波器
  • 调制解调器
  • 振动分析
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
$10.11 @1k
MAX275 2300
PDIP/20
SOIC (W)/20
$5.26 @1k
查看所有Active Filters (47)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。


MAX274: 四阶及八阶、连续时间方式有源滤波器
MAX274EVKIT: 四阶及八阶、连续时间方式有源滤波器
MAX275: 四阶及八阶、连续时间方式有源滤波器

工具和模型

  • MAX274设计软件
  • 型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

    备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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