MAX7407:八阶、低通、椭圆函数、开关电容滤波器

尺寸最小的低功耗、8阶椭圆滤波器

The MAX7400/MAX7403/MAX7404/MAX7407 8th-order, lowpass, elliptic, switched-capacitor filters (SCFs) operate from a single +5V (MAX7400/MAX7403) or +3V (MAX7404/MAX7407) supply. These devices draw 2mA of supply current and allow corner frequencies from 1Hz to 10kHz, making them ideal for low-power anti-aliasing and post-DAC filtering applications. They feature a shutdown mode that reduces the supply current to 0.2µA. Two clocking options are available: self-clocking (through the use of an external capacitor) or external clocking for tighter cutoff-frequency control. In addition, an offset adjustment pin (OS) allows for the adjustment of the DC output level. The MAX7400/MAX7404 provide 82dB of stopband rejection and a sharp rolloff with a transition ratio of 1.5. The MAX7403/MAX7407 provide a sharper rolloff with a transition ratio of 1.2, while still delivering 60dB of stopband rejection. The fixed response of these devices simplifies the design task to corner-frequency selection by setting a clock frequency. The MAX7400/MAX7403/MAX7404/MAX7407 are available in 8-pin SO and DIP packages.

关键特性
  • 8th-Order Lowpass Elliptic Filter
  • Low Noise and Distortion -82dB THD + Noise (MAX7400)
  • Clock-Tunable Corner Frequency (1Hz to 10kHz)
  • 100:1 Clock-to-Corner Ratio
  • Single-Supply Operation
    • +5V (MAX7400/MAX7403)
    • +3V (MAX7404/MAX7407)
  • Low Power
    • 2mA (Operating Mode)
    • 0.2µA (Shutdown Mode)
  • Available in 8-Pin SO and DIP Packages
  • Low Output Offset: ±5mV
MAX7400、MAX7403、MAX7404、MAX7407:典型工作电路
MAX7400、MAX7403、MAX7404、MAX7407:典型工作电路
应用
  • ADC抗混叠
  • 气囊电子装置
  • CT2基站
  • DAC后置滤波
  • 语音处理
数据手册DataSheet
语言下载文件备注
英文MAX7400-MAX7407.pdfRev 2; 06/1999
关键参数
Part NumberFilter SectionsOrder Per Filter SectionFilter ClassFilter TypeFilter CharacteristicProgram MethodLowest Cutoff
(Hz)
Highest Cutoff
(kHz)
VSUPPLY
(V)
Design ToolsOper. Temp.
(°C)
Package/PinsBudgetary
Price
maxminSee Notes
MAX740018Switched CapLowpassEllipticClock1105EE-Sim
  • -40 to +85
  • 0 to +70
  • PDIP(N)/8
  • SOIC(N)/8
$3.15 @1k
MAX74035
  • PDIP(N)/8
  • SOIC(N)/8
$2.94 @1k
MAX74043
  • PDIP(N)/8
  • SOIC(N)/8
$2.76 @1k
MAX74073
  • PDIP(N)/8
  • SOIC(N)/8
$2.76 @1k
技术资料
相关产品
  • MAX7408:五阶、低通、椭圆函数、开关电容滤波器
  • MAX7411:五阶、低通、椭圆函数、开关电容滤波器
  • MAX7415:五阶、低通、椭圆函数、开关电容滤波器
  • MAX7412:五阶、低通、椭圆函数、开关电容滤波器
  • MAX294:八阶、低通、椭圆函数、开关电容滤波器
  • MAX297:八阶、低通、椭圆函数、开关电容滤波器
  • MAX293:八阶、低通、椭圆函数、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
MAX7407CPA停止供货MAX7407CPA+PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:否
MAX7407CPA+生产中PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:无铅
MAX7407CSA停止供货MAX7407CSA+SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:否
MAX7407CSA+生产中SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:无铅
MAX7407CSA+T生产中SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:无铅
MAX7407CSA-T停止供货MAX7407CSA+TN.SO;8引脚0°C至+70°C参考数据资料
MAX7407EPA停止供货MAX7407EPA+PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:否
MAX7407EPA+生产中PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:无铅
MAX7407ESA停止供货MAX7407ESA+SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
MAX7407ESA+生产中SOIC(N),;8引脚;30.9mm²-40°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?
MAX7407ESA+T生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX7407ESA-T停止供货MAX7407ESA+TN.SO;8引脚-40°C至+85°C参考数据资料
MAX7400-MAX7407.pdf MAX7407
Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface MAX5492
A Filter Primer MAX7491
MAX7400-MAX7407.pdf MAX7407