MAX295:八阶、低通、开关电容滤波器

请参考MAX7401/MAX7405 8阶、低功耗贝塞尔滤波器

The MAX291/MAX292/MAX295/MAX296 are easy-to-use, 8th-order, lowpass, switched-capacitor filters that can be set up with corner frequencies from 0.1Hz to 25kHz (MAX291/MAX292) or 0.1Hz to 50kHz (MAX295/MAX296). The MAX291/MAX295 Butterworth filters provide maximally flat passband response, and the MAX292/MAX296 Bessel filters provide low overshoot and fast settling. All four filters have fixed responses, so the design task is limited to selecting the clock frequency that controls the filter's corner frequency. An external capacitor is used to generate a clock using the internal oscillator, or an external clock signal can be used. An uncommitted operational amplifier (noninverting input grounded) is provided for building a continuous time lowpass filter for post-filtering or anti-aliasing. Produced in an 8-pin DIP/SO and a 16-pin wide SO package, and requiring a minimum of external components, the MAX291 series delivers very aggressive performance from a tiny area.

关键特性
  • 8th-Order Lowpass Filters:
    • Butterworth (MAX291/MAX295)
    • Bessel (MAX292/MAX296)
  • Clock-Tunable Corner-Frequency Range:
    • 0.1Hz to 25kHz (MAX291/MAX292)
    • 0.1Hz to 50kHz (MAX295/MAX296)
  • No External Resistors or Capacitors Required
  • Internal or External Clock
  • Clock to Corner Frequency Ratio:
    • 100:1 (MAX291/MAX292)
    • 50:1 (MAX295/MAX296)
  • Low Noise: -70dB THD + Noise (Typ)
  • Operate with a Single +5V Supply or Dual ±5V Supplies
  • Uncommitted Op Amp for Anti-Aliasing or Clock-Noise Filtering
  • 8-Pin DIP and SO Packages
MAX291、MAX292、MAX295、MAX296:典型工作电路
MAX291、MAX292、MAX295、MAX296:典型工作电路
应用
  • 50Hz/60Hz电源噪声滤波
  • ADC抗混叠滤波器
  • DAC后置滤波
  • 噪声分析
数据手册DataSheet
语言下载文件备注
英文MAX291-MAX296.pdfRev 5; 08/2010
关键参数
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
MAX29118Switched CapLowpassButterworthClock0.12555
  • -55 to +125
  • -40 to +85
  • 0 to +70
  • CDIP(N)/8
  • PDIP(N)/8
  • SOIC(N)/8
  • SOIC(W)/16
$4.88 @1k
MAX292Bessel25
  • CDIP(N)/8
  • PDIP(N)/8
  • SOIC(N)/8
  • SOIC(W)/16
$4.20 @1k
MAX295Butterworth50
  • CDIP(N)/8
  • PDIP(N)/8
  • SOIC(N)/8
  • SOIC(W)/16
$3.92 @1k
MAX296Bessel50
  • CDIP(N)/8
  • PDIP(N)/8
  • SOIC(N)/8
  • SOIC(W)/16
$3.74 @1k
质量和环境数据
相关产品
  • MAX7405:八阶、低通、贝塞尔、开关电容滤波器
  • MAX7401:八阶、低通、贝塞尔、开关电容滤波器
  • MAX7413:五阶、低通、开关电容滤波器
  • MAX7410:五阶、低通、开关电容滤波器
  • MAX7414:五阶、低通、开关电容滤波器
  • MAX7409:五阶、低通、开关电容滤波器
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX295C/DNRNDMAX295ESA+DICE SALES,;NA引脚;DICE S;0°C至+70°C参考数据资料
MAX295CPA停止供货MAX295CPA+PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:否
MAX295CPA+生产中PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:无铅
MAX295CSA停止供货MAX295CSA+SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:否
MAX295CSA+生产中SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:无铅
MAX295CSA+T生产中N.SO;8引脚0°C至+70°C参考数据资料
MAX295CSA-T停止供货MAX295CSA+TN.SO;8引脚0°C至+70°C参考数据资料
MAX295CWE停止供货MAX295CWE+SOIC(W),;16引脚;111.8mm²0°C至+70°CRoHS/无铅:否
MAX295CWE+生产中SOIC(W),;16引脚;111.8mm²0°C至+70°CRoHS/无铅:无铅
MAX295CWE+T生产中SOIC(W),;16引脚;111.8mm²0°C至+70°CRoHS/无铅:无铅
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
MAX295CWE-T停止供货MAX295CWE+TW.SO;16引脚0°C至+70°C参考数据资料
MAX295EPA停止供货MAX295EPA+PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:否
MAX295EPA+生产中PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:无铅
MAX295ESA停止供货MAX295ESA+SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
MAX295ESA+生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX295ESA+T生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX295ESA-T停止供货MAX295ESA+TN.SO;8引脚-40°C至+85°C参考数据资料
MAX295EWE停止供货MAX295EWE+SOIC(W),;16引脚;111.8mm²-40°C至+85°CRoHS/无铅:否
MAX295EWE+生产中SOIC(W),;16引脚;111.8mm²-40°C至+85°CRoHS/无铅:无铅
MAX295EWE+T生产中SOIC(W),;16引脚;111.8mm²-40°C至+85°CRoHS/无铅:无铅
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
MAX295EWE-T停止供货MAX295EWE+TW.SO;16引脚-40°C至+85°C参考数据资料
MAX295EWE/GH9停止供货MAX295EWE+SOIC(W),;16引脚;111.8mm²-40°C至+85°CRoHS/无铅:否
MAX295EWE/GH9-T停止供货MAX295EWE+SOIC(W),;16引脚;111.8mm²-40°C至+85°CRoHS/无铅:否
MAX295MJA生产中CDIP(N),;8引脚;82.6mm²-55°C至+125°CRoHS/无铅:否
MAX291-MAX296.pdf MAX296
MAX295.pdf MAX295
MAX291-MAX296.pdf MAX296