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引脚可编程的通用及带通滤波器

产品详情

主要特征

应用/用途

Parametric specs for Active Filters
Filter Type Universal
Filter Sections 2
Order Per Filter Section 2
Highest Cutoff (kHz) (min) 57
Lowest Cutoff (Hz) (max) 0.4
Filter Class Switched Cap
Filter Characteristic Programmable
Program Method Pin Strap
Oper. Temp. (°C) -55 to +125
-40 to +85
0 to +70
Package/Pins PDIP/28
SOIC (W)/28
Budgetary
Price (See Notes)
$15.20 @1k
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简化框图

技术文档

数据资料 引脚可编程的通用及带通滤波器 May 13, 2008

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参量

Parametric specs for Active Filters
Filter Type Universal
Filter Sections 2
Order Per Filter Section 2
Highest Cutoff (kHz) (min) 57
Lowest Cutoff (Hz) (max) 0.4
Filter Class Switched Cap
Filter Characteristic Programmable
Program Method Pin Strap
Oper. Temp. (°C) -55 to +125
-40 to +85
0 to +70
Package/Pins PDIP/28
SOIC (W)/28
Budgetary
Price (See Notes)
$15.20 @1k

主要特征

  • 32-Step Center Frequency Control
  • 128-Step Q Control
  • Independent Q and f0 Programming
  • Guaranteed Clock to f0 Ratio—1% (A grade)
  • 75kHz f0 Range (MAX264/268)
  • Single +5V and ±5V Operation

应用/用途

描述

The MAX263/264 and MAX267/268 CMOS switched-capacitor active filters are designed for precision filtering applications. Center frequency, Q, and operating mode are all selected via pin-strapped inputs. The MAX263/264 uses no external components for a variety of bandpass, lowpass, highpass, notch and allpass filters. The MAX267/268 is dedicated to bandpass applications and includes an uncommitted op-amp. Two second-order filter sections are included in both devices.

An input clock and a 5-bit programming input precisely set the filter center/corner frequency. Q is also programmed from 0.5 to 64. Separate clock inputs for each filter half operate either an external clock or a crystal.

The MAX263 and 267 operate with center frequencies up to 57kHz while the MAX264 and 268 extend the f0 range to 140kHz by employing lower fCLK/f0 ratios. The MAX263/264 is supplied in 28 pin wide DIP and small outline packages while the MAX267/268 is supplied in 24 pin narrow DIP and wide SO packages. All devices are available in commercial, extended, and military temperature ranges.

简化框图

MAX263、MAX264、MAX267、MAX268: 典型工作电路 MAX263、MAX264、MAX267、MAX268:典型工作电路 Zoom icon

技术文档

数据资料 引脚可编程的通用及带通滤波器 May 13, 2008

支持和培训

在Maxim的知识库中搜索解决技术问题所需的答案。

过滤搜索

Maxim专业的应用工程师团队也可以为您解答技术问题,请 访问Maxim的 支持中心