MAX275：四阶及八阶、连续时间方式有源滤波器
低噪声连续时间滤波器，可消除时钟噪声和混叠
The MAX274 and MAX275 are continuous-time active filters consisting of independent cascadable 2nd-order sections. Each section can implement any all-pole bandpass or lowpass filter response, such as Butterworth, Bessel, Chebyshev, and is programmed by four external resistors. The MAX274/MAX275 provide lower noise that switched-capacitor filters, as well as superior dynamic performance—both due to the continuous-time design. Since continuous-time filters do not require a clock, aliased and clock noise are eliminated with the MAX274/MAX275. The MAX274 comprises of four 2nd-order sections, permitting 8th-order filters to be realized. Center frequencies range up to 150kHZ, and are accurate to within ±1% over the full operating temperature range. Total harmonic distortion (THD) is typically better than -86dB. The MAX275 comprises of two 2nd-order sections, permitting 4th-order filters to be realized. Center frequencies range up to 300kHZ, and are accurate to within ±0.9% over the full operating temperature range. Total harmonic distortion (THD) is typically better than -86dB. Both filters operate from a single +5V supply or from dual ±5V supplies.
关键特性
| MAX274、MAX274EVKIT、MAX275：典型工作电路 应用
|
数据手册DataSheet
| 语言 | 下载文件 | 备注 |
|---|---|---|
| 英文 | MAX274-MAX275.pdf | Rev 3; 10/1996 |
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 | ||||||||||
| MAX274 | 4 | 2 | Continuous |
| Programmable | Resistor | 100 | 150 | 5 | 5 |
|
| $6.22 @1k |
| MAX275 | 2 | 300 |
| $5.01 @1k | |||||||||
开发工具
技术资料
- Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface
- A Beginner's Guide to Filter Topologies
- Add Digital Adjustment to Continuous-Time Filters
质量和环境数据
订购型号
| 型号 | 状况 | 推荐替代产品 | 封装 |
|---|---|---|---|
| MAX275ACPP | 停止供货 | MAX275ACPP+ | PDIP(N),；20引脚；219.2mm² |
| MAX275ACPP+ | 生产中 | PDIP(N),；20引脚；219.2mm² | |
| MAX275ACWP | 停止供货 | MAX275ACWP+ | SOIC(W),；20引脚；138.5mm² |
| MAX275ACWP+ | 生产中 | SOIC(W),；20引脚；138.5mm² | |
| MAX275ACWP+T | 生产中 | SOIC(W),；20引脚；138.5mm² | |
| MAX275ACWP-T | 停止供货 | MAX275ACWP+T | W.SO；20引脚 |
| MAX275AEPP | 停止供货 | MAX275AEPP+ | PDIP(N),；20引脚；219.2mm² |
| MAX275AEPP+ | 生产中 | PDIP(N),；20引脚；219.2mm² | |
| MAX275AEWP | 停止供货 | MAX275AEWP+ | SOIC(W),；20引脚；138.5mm² |
| MAX275AEWP+ | 生产中 | SOIC(W),；20引脚；138.5mm² | |
| 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 * |
| MAX275AEWP+T | 生产中 | SOIC(W),；20引脚；138.5mm² | |
| MAX275AEWP-T | 停止供货 | MAX275AEWP+T | W.SO；20引脚 |
| MAX275AMDP | 停止供货 | CDIP(N),；20引脚；215.4mm² | |
| MAX275AMJP | 停止供货 | CDIP(N),；20引脚；218.9mm² | |
| MAX275BC/D | NRND | MAX275AEWP+ | DICE SALES,；NA引脚；DICE S； |
| MAX275BCPP | 停止供货 | MAX275BCPP+ | PDIP(N),；20引脚；219.2mm² |
| MAX275BCPP+ | 生产中 | PDIP(N),；20引脚；219.2mm² | |
| MAX275BCWP | 停止供货 | MAX275BCWP+ | SOIC(W),；20引脚；138.5mm² |
| MAX275BCWP+ | 生产中 | SOIC(W),；20引脚；138.5mm² | |
| MAX275BCWP+T | 生产中 | SOIC(W),；20引脚；138.5mm² | |
| 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 * |
| MAX275BCWP-T | 停止供货 | MAX275BCWP+T | SOIC(W),；20引脚；138.5mm² |
| MAX275BEPP | 停止供货 | MAX275BEPP+ | PDIP(N),；20引脚；219.2mm² |
| MAX275BEPP+ | 生产中 | PDIP(N),；20引脚；219.2mm² | |
| MAX275BEWP | 停止供货 | MAX275BEWP+ | SOIC(W),；20引脚；138.5mm² |
| MAX275BEWP+ | 生产中 | SOIC(W),；20引脚；138.5mm² | |
| MAX275BEWP+T | 生产中 | SOIC(W),；20引脚；138.5mm² | |
| MAX275BEWP-T | 停止供货 | MAX275BEWP+T | W.SO；20引脚 |
| MAX275BMDP | 停止供货 | CDIP(N),；20引脚；215.4mm² | |
| MAX275BMJP | 停止供货 | CDIP(N),；20引脚；218.9mm² | |
| MAX275SOFT | 停止供货 |
- MAX274-MAX275.pdf MAX275
