MAX7415:五阶、低通、椭圆函数、开关电容滤波器

尺寸最小的低功耗5阶滤波器

The MAX7408/MAX7411/MAX7412/MAX7415 5th-order, lowpass, elliptic, switched-capacitor filters (SCFs) operate from a single +5V (MAX7408/MAX7411) or +3V (MAX7412/MAX7415) supply. The devices draw only 1.2mA of supply current and allow corner frequencies from 1Hz to 15kHz, making them ideal for low-power post-DAC filtering and anti-aliasing applications. They can be put into a low-power mode, reducing 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. An offset-adjust pin allows for adjustment of the DC output level. The MAX7408/MAX7412 deliver 53dB of stopband rejection and a sharp rolloff with a transition ratio of 1.6. The MAX7411/MAX7415 achieve a sharper rolloff with a transition ratio of 1.25 while still providing 37dB of stop-band rejection. Their fixed response limits the design task to selecting a clock frequency.

关键特性
  • 5th-Order, Elliptic Lowpass Filters
  • Low Noise and Distortion: -80dB THD + Noise
  • Clock-Tunable Corner Frequency (1Hz to 15kHz)
  • Single-Supply Operation
    • +5V (MAX7408/MAX7411)
    • +3V (MAX7412/MAX7415)
  • Low Power
    • 1.2mA (operating mode)
    • 0.2µA (shutdown mode)
  • Available in 8-Pin µMAX®/DIP Packages
  • Low Output Offset: ±4mV
MAX7408、MAX7411、MAX7412、MAX7415:典型工作电路
MAX7408、MAX7411、MAX7412、MAX7415:典型工作电路
应用
  • ADC抗混叠
  • 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MAX7408-MAX7415.pdfRev 1; 10/1998
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
MAX740815Switched CapLowpassEllipticClock1155EE-Sim
  • -40 to +85
  • 0 to +70
  • µMAX/8
  • PDIP(N)/8
$2.25 @1k
MAX74115
  • µMAX/8
  • PDIP(N)/8
$2.13 @1k
MAX74123
  • µMAX/8
  • PDIP(N)/8
$3.06 @1k
MAX74153
  • µMAX/8
  • PDIP(N)/8
$2.03 @1k
开发工具
技术资料
相关产品
  • MAX7407:八阶、低通、椭圆函数、开关电容滤波器
  • MAX7400:八阶、低通、椭圆函数、开关电容滤波器
  • MAX7403:八阶、低通、椭圆函数、开关电容滤波器
  • MAX7404:八阶、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
MAX7408-MAX7415.pdf MAX7415
Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface MAX5492
A Filter Primer MAX7491
MAX7408-MAX7415.pdf MAX7415