MAX271

数字可编程、双路、二阶、连续时间方式低通滤波器


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说明

The MAX270/MAX271 are digitally-programmed, dual second-order continuous-time lowpass filters. Their typical dynamic range of 96dB surpasses most switched capacitor filters which require additional filtering to remove clock noise. The MAX270/MAX271 are ideal for anti-aliasing and DAC smoothing applications and can be cascaded for higher-order responses.

The two filter sections are independently programmable by either microprocessor (µP) control or pin strapping. Cutoff frequencies in the 1kHz to 25kHz range can be selected.

The MAX270 has an on-board, uncommitted op amp, while the MAX271 has an internal track-and-hold (T/H).

MAX270:引脚配置 MAX270:引脚配置 放大+

关键特性

  • Continuous-Time Filtering - No Clock Required
  • Dual 2nd-Order Lowpass Filters
  • Sections Independently Programmable: 1kHz to 25kHz
  • 96dB Dynamic Range
  • No External Components
  • Cascadable for Higher Order
  • Low-Power Shutdown Mode
  • Track-and-Hold (MAX271)

应用

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请查看具体的参数规格 Active Filters (47)


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
(max)(min)(Dual)(See Notes)
MAX270 22ContinuousLowpassChebychev
µP Bus
Pin Strap
10002555
-55 to +125
-40 to +85
0 to +70
DICE SALES/N
PDIP/20
SOIC (W)/20
$11.86 @1k
MAX271 
PDIP/24
SOIC (W)/24
$12.36 @1k

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。
申请可靠性报告: MAX271 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

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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