OPA228 高精度、低噪声运算放大器
The OPA227 and OPA228 series op amps combine low noise and wide bandwidth with high precision to make them the ideal choice for applications requiring both ac and precision dc performance.
The OPA227 is unity gain stable and features high slew rate (2.3V/&micor;s) and wide bandwidth (8MHz). The OPA228 is optimized for closed-loop gains of 5 or greater, and offers higher speed with a slew rate of 10V/us and a bandwidth of 33MHz.
The OPA227 and OPA228 series op amps are ideal for professional audio equipment. In addition, low quiescent current and low cost make them ideal for portable applications requiring high precision.
The OPA227 and OPA228 series op amps are pin-for-pin replacements for the industry standard OP-27 and OP-37 with substantial improvements across the board
| OPA2227 | OPA2228 | OPA227 | OPA228 | OPA4227 | OPA4228 | |
| Number of Channels | 2 | 2 | 1 | 1 | 4 | 4 |
| Total Supply Voltage (V)(Min)(+5V=5, +/-5V=10) | 5 | 5 | 5 | 5 | 5 | 5 |
| Total Supply Voltage (V)(Max)(+5V=5, +/-5V=10) | 36 | 36 | 36 | 36 | 36 | 36 |
| Iq per channel(Max)(mA) | 3.8 | 3.8 | 3.8 | 3.8 | 3.8 | 3.8 |
| GBW(Typ)(MHz) | 8 | 33 | 8 | 33 | 8 | 33 |
| Slew Rate(Typ)(V/us) | 2.3 | 11 | 2.3 | 11 | 2.3 | 11 |
| VIO (25 deg C)(Max)(mV) | 0.075 | 0.75 | 0.75 | 0.75 | 0.2 | 0.2 |
| Offset Drift(Typ)(uV/C) | 0.1 | 0.1 | 0.1 | 0.1 | 0.3 | 0.3 |
| IIB(Max)(pA) | 10000 | 10000 | 10000 | 10000 | 10000 | 10000 |
| CMRR(Min)(dB) | 120 | 120 | 120 | 120 | 120 | 120 |
| Io(Typ)(mA) | 3 | 3 | 3 | 3 | 3 | 3 |
| Rating | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| Pin/Package | 8PDIP, 8SOIC | 8PDIP, 8SOIC | 8PDIP, 8SOIC | 8PDIP, 8SOIC | 14PDIP, 14SOIC | 14PDIP, 14SOIC |
| Approx. Price (US$) | -40 to 85 | |||||
| Operating Temperature Range(C) | 1.85 | 1ku | 1.85 | 1ku | 1.10 | 1ku | 1.10 | 1ku | 4.05 | 1ku | 4.05 | 1ku |
OPA228 特性
- LOW NOISE: 3nV/
(Hz)
- WIDE BANDWIDTH:
- OPA228: 8MHz, 2.3V/us
- OPA228: 33MHz, 10V/&#micro;s
- SETTLING TIME: 5us (significant improvement over OP-27)
- HIGH CMRR: 138dB
- HIGH OPEN-LOOP GAIN: 160dB
- LOW INPUT BIAS CURRENT: 10nA max
- LOW OFFSET VOLTAGE: 75uV max
- WIDE SUPPLY RANGE: ±2.5V to ±18V
- OPA227 REPLACES OP-27, LT1007, MAX427
- OPA228 REPLACES OP-37, LT1037, MAX437
- SINGLE, DUAL, AND QUAD VERSIONS
- APPLICATIONS
- DATA ACQUISITION
- TELECOM EQUIPMENT
- GEOPHYSICAL ANALYSIS
- VIBRATION ANALYSIS
- SPECTRAL ANALYSIS
- PROFESSIONAL AUDIO EQUIPMENT
OPA228 芯片订购指南
| 器件 | 状态 | 价格（美元） | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| OPA228P | ACTIVE | 2.40 | 1ku | PDIP (P) | 8 | 50 | TUBE | |
| OPA228PA | ACTIVE | 1.10 | 1ku | PDIP (P) | 8 | 50 | TUBE | |
| OPA228PAG4 | ACTIVE | 1.10 | 1ku | PDIP (P) | 8 | 50 | TUBE | |
| OPA228PG4 | ACTIVE | 2.40 | 1ku | PDIP (P) | 8 | 50 | TUBE | |
| OPA228U | ACTIVE | 2.60 | 1ku | SOIC (D) | 8 | 75 | TUBE | |
| OPA228U/2K5 | ACTIVE | 2.40 | 1ku | SOIC (D) | 8 | 2500 | LARGE T&R | |
| OPA228U/2K5E4 | ACTIVE | 2.40 | 1ku | SOIC (D) | 8 | 2500 | LARGE T&R | |
| OPA228UA | ACTIVE | 1.30 | 1ku | SOIC (D) | 8 | 75 | TUBE | |
| OPA228UA/2K5 | ACTIVE | 1.10 | 1ku | SOIC (D) | 8 | 2500 | LARGE T&R | |
| OPA228UA/2K5G4 | ACTIVE | 1.10 | 1ku | SOIC (D) | 8 | 2500 | LARGE T&R | |
| OPA228UAG4 | ACTIVE | 1.30 | 1ku | SOIC (D) | 8 | 75 | TUBE | |
| OPA228UE4 | ACTIVE | 2.60 | 1ku | SOIC (D) | 8 | 75 | TUBE |
OPA228 质量与无铅数据
| 器件 | 环保计划* | 铅/焊球涂层 | MSL 等级/回流焊峰 | 环保信息与无铅 (Pb-free) | DPPM / MTBF / FIT 率 |
| OPA228P | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | OPA228P | OPA228P |
| OPA228PA | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | OPA228PA | OPA228PA |
| OPA228PAG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | OPA228PAG4 | OPA228PAG4 |
| OPA228PG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | OPA228PG4 | OPA228PG4 |
| OPA228U | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | OPA228U | OPA228U |
| OPA228U/2K5 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | OPA228U/2K5 | OPA228U/2K5 |
| OPA228U/2K5E4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | OPA228U/2K5E4 | OPA228U/2K5E4 |
| OPA228UA | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | OPA228UA | OPA228UA |
| OPA228UA/2K5 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | OPA228UA/2K5 | OPA228UA/2K5 |
| OPA228UA/2K5G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | OPA228UA/2K5G4 | OPA228UA/2K5G4 |
| OPA228UAG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | OPA228UAG4 | OPA228UAG4 |
| OPA228UE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | OPA228UE4 | OPA228UE4 |
OPA228 应用技术支持与电子电路设计开发资源下载
- OPA228 数据资料 dataSheet 下载.PDF
- TI 德州仪器仪运算放大器 (Op Amp)产品选型与价格 . xls
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
- 在 PSPICE 中使用德州仪器 (TI) SPICE 模型 (zhca088.HTM, 8 KB)
- PowerPADTM Thermally Enhanced Package (slma002g.HTM, 8 KB)
- 运算放大器的单电源操作 (PDF 2174 KB)
- Tuning in Amplifiers (PDF 44 KB)
- Op Amp Performance Analysis (PDF 76 KB)
- An Error Analysis of the ISO102 in a Small Signal Measuring Application (PDF 29 KB)
- Level Shifting Signals with Differential Amplifiers (PDF 23 KB)
- Operational Amplifier Macromodels: A Comparison (PDF 59 KB)
OPA228 工具与软件
| 名称 | 型号 | 工具/软件类型 |
| 音频的快速搜索选择工具 | AUDIO_SELECTION_TOOL | 免费评估工具 |
| OPA228 评估模块 | OPA228EVM | 开发电路板/EVM |
| 用于音频转换器的软件驱动程序 | CODECDRIVERS-SW | 应用软件 |