MAX7400：八阶、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
| MAX7400、MAX7403、MAX7404、MAX7407：典型工作电路 应用
|
数据手册DataSheet
| 语言 | 下载文件 | 备注 |
|---|---|---|
| 英文 | MAX7400-MAX7407.pdf | Rev 2; 06/1999 |
关键参数
| Part Number | Filter Sections | Order Per Filter Section | Filter Class | Filter Type | Filter Characteristic | Program Method | Lowest Cutoff (Hz) | Highest Cutoff (kHz) | VSUPPLY (V) | Design Tools | Oper. Temp. (°C) | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| max | min | See Notes | |||||||||||
| MAX7400 | 1 | 8 | Switched Cap | Lowpass | Elliptic | Clock | 1 | 10 | 5 | EE-Sim |
|
| $3.15 @1k |
| MAX7403 | 5 |
| $2.94 @1k | ||||||||||
| MAX7404 | 3 |
| $2.76 @1k | ||||||||||
| MAX7407 | 3 |
| $2.76 @1k | ||||||||||
技术资料
- Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface
- Low-Cost Circuit Converts Clock to Low-Distortion Sinewave
- Digitally Controlled Sine-Wave Generator
- A Filter Primer
质量和环境数据
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 |
|---|---|---|---|---|---|
| MAX7400CPA | 停止供货 | MAX7400CPA+ | PDIP(N),；8引脚；79.7mm² | 0°C至+70°C | RoHS/无铅：否 |
| MAX7400CPA+ | 生产中 | PDIP(N),；8引脚；79.7mm² | 0°C至+70°C | RoHS/无铅：无铅 | |
| MAX7400CSA | 停止供货 | MAX7400CSA+ | SOIC(N),；8引脚；30.9mm² | 0°C至+70°C | RoHS/无铅：否 |
| MAX7400CSA+ | 生产中 | SOIC(N),；8引脚；30.9mm² | 0°C至+70°C | RoHS/无铅：无铅 | |
| MAX7400CSA+T | 生产中 | SOIC(N),；8引脚；30.9mm² | 0°C至+70°C | RoHS/无铅：无铅 | |
| MAX7400CSA-T | 停止供货 | MAX7400CSA+T | N.SO；8引脚 | 0°C至+70°C | 参考数据资料 |
| MAX7400EPA | 停止供货 | MAX7400EPA+ | PDIP(N),；8引脚；79.7mm² | -40°C至+85°C | RoHS/无铅：否 |
| MAX7400EPA+ | 生产中 | PDIP(N),；8引脚；79.7mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX7400ESA | 停止供货 | MAX7400ESA+ | SOIC(N),；8引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：否 |
| MAX7400ESA+ | 生产中 | SOIC(N),；8引脚；30.9mm² | -40°C至+85°C | RoHS/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？ |
| MAX7400ESA+T | 生产中 | SOIC(N),；8引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX7400ESA-T | 停止供货 | MAX7400ESA+T | N.SO；8引脚 | -40°C至+85°C | 参考数据资料 |
- MAX7400-MAX7407.pdf MAX7407
