MAX7401：八阶、低通、贝塞尔、开关电容滤波器
尺寸最小的低功耗、8阶贝塞尔滤波器
The MAX7401/MAX7405 8th-order, lowpass, Bessel, switched-capacitor filters (SCFs) operate from a single +5V (MAX7401) or +3V (MAX7405) supply. These devices draw only 2mA of supply current and allow corner frequencies from 1Hz to 5kHz, making them ideal for low-power post-DAC filtering and anti-aliasing applications. They feature a shutdown mode that reduces supply current to 0.2µA. Two clocking options are available on these devices: self-clocking (through the use of an external capacitor) or external clocking for tighter corner-frequency control. An offset adjust pin allows for adjustment of the DC output level. The MAX7401/MAX7405 Bessel filters provide low overshoot and fast settling. Their fixed response simplifies the design task to selecting a clock frequency.
关键特性
| MAX7401、MAX7405：典型工作电路 应用
|
数据手册DataSheet
| 语言 | 下载文件 | 备注 |
|---|---|---|
| 英文 | MAX7401-MAX7405.pdf | Rev 1; 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 | |||||||||||
| MAX7401 | 1 | 8 | Switched Cap | Lowpass | Bessel | Clock | 1 | 5 | 5 | EE-Sim |
|
| $2.84 @1k |
| MAX7405 | 3 |
| $3.16 @1k | ||||||||||
技术资料
- Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface
- A Filter Primer
相关产品
订购型号
| 型号 | 状况 | 推荐替代产品 | 封装 | 温度 | RoHS/无铅 |
|---|---|---|---|---|---|
| MAX7401CPA | 停止供货 | MAX7401CPA+ | PDIP(N),；8引脚；79.7mm² | 0°C至+70°C | RoHS/无铅：否 |
| MAX7401CPA+ | 生产中 | PDIP(N),；8引脚；79.7mm² | 0°C至+70°C | RoHS/无铅：无铅 | |
| MAX7401CSA | 停止供货 | MAX7401CSA+ | SOIC(N),；8引脚；30.9mm² | 0°C至+70°C | RoHS/无铅：否 |
| MAX7401CSA+ | 生产中 | SOIC(N),；8引脚；30.9mm² | 0°C至+70°C | RoHS/无铅：无铅 | |
| MAX7401CSA+T | 生产中 | SOIC(N),；8引脚；30.9mm² | 0°C至+70°C | RoHS/无铅：无铅 | |
| MAX7401CSA-T | 停止供货 | MAX7401CSA+T | N.SO；8引脚 | 0°C至+70°C | 参考数据资料 |
| MAX7401EPA | 停止供货 | MAX7401EPA+ | PDIP(N),；8引脚；79.7mm² | -40°C至+85°C | RoHS/无铅：否 |
| MAX7401EPA+ | 生产中 | PDIP(N),；8引脚；79.7mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX7401ESA | 停止供货 | MAX7401ESA+ | SOIC(N),；8引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：否 |
| MAX7401ESA+ | 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？ |
| MAX7401ESA+T | 生产中 | SOIC(N),；8引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX7401ESA-T | 停止供货 | MAX7401ESA+T | N.SO；8引脚 | -40°C至+85°C | 参考数据资料 |
- MAX7401-MAX7405.pdf MAX7405
