MAX270：数字可编程、双路、二阶、连续时间方式低通滤波器
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).
关键特性
| MAX270：引脚配置 应用 |
数据手册DataSheet
| 语言 | 下载文件 | 备注 |
|---|---|---|
| 英文 | MAX270-MAX271.pdf | Rev 2; 11/2012 |
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 (Dual) (±V) | VSUPPLY (V) | Oper. Temp. (°C) | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| max | min | Dual | See Notes | ||||||||||
| MAX270 | 2 | 2 | Continuous | Lowpass | Chebychev |
| 1000 | 25 | 5 | 5 |
|
| $11.29 @1k |
| MAX271 |
| $11.80 @500 | |||||||||||
技术资料
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 |
|---|---|---|---|---|---|
| MAX270C/D | 停止供货 | MAX270EWP+ | DICE SALES,；NA引脚；DICE S； | 0°C至+70°C | 参考数据资料 |
| MAX270CPP | 停止供货 | MAX270CPP+ | PDIP(N),；20引脚；217.1mm² | 0°C至+70°C | RoHS/无铅：否 |
| MAX270CPP+ | 生产中 | PDIP(N),；20引脚；217.1mm² | 0°C至+70°C | RoHS/无铅：无铅 | |
| MAX270CWP | 停止供货 | MAX270CWP+ | SOIC(W),；20引脚；138.5mm² | 0°C至+70°C | RoHS/无铅：否 |
| MAX270CWP+ | 生产中 | SOIC(W),；20引脚；138.5mm² | 0°C至+70°C | RoHS/无铅：无铅 | |
| MAX270CWP+T | 生产中 | W.SO；20引脚 | 0°C至+70°C | 参考数据资料 | |
| MAX270CWP-T | 停止供货 | MAX270CWP+T | W.SO；20引脚 | 0°C至+70°C | 参考数据资料 |
| MAX270EPP | 停止供货 | MAX270EPP+ | PDIP(N),；20引脚；217.1mm² | -40°C至+85°C | RoHS/无铅：否 |
| MAX270EPP+ | 生产中 | PDIP(N),；20引脚；217.1mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX270EWP | 停止供货 | MAX270EWP+ | SOIC(W),；20引脚；138.5mm² | -40°C至+85°C | RoHS/无铅：否 |
| 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？ |
| MAX270EWP+ | 生产中 | SOIC(W),；20引脚；138.5mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX270EWP+T | 生产中 | SOIC(W),；20引脚；138.5mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX270EWP-T | 停止供货 | MAX270EWP+T | SOIC(W),；20引脚；138.5mm² | -40°C至+85°C | RoHS/无铅：否 |
| MAX270MJP | 停止供货 | CDIP(N),；20引脚；218.9mm² | -55°C至+125°C | RoHS/无铅：否 |
- MAX270-MAX271.pdf MAX271
