OPA27 超低噪声精密运算放大器
The OPA27 and OPA37 are ultra-low noise, high-precision monolithic operational amplifiers.
Laser-trimmed thin-film resistors provide excellent long-term voltage offset stability and allow superior voltage offset compared to common zener-zap techniques.
A unique bias current cancellation circuit allows bias and offset current specifications to be met over the full –40°C to +85°C temperature range.
The OPA27 is internally compensated for unity-gain stability. The decompensated OPA37 requires a closed-loop gain 
5.
The Texas Instruments’ OPA27 and OPA37 are improved replacements for the industry-standard OP-27 and OP-37
| OPA27 | OPA37 | |
| Number of Channels | 1 | 1 |
| Total Supply Voltage (V)(Min)(+5V=5, +/-5V=10) | 8 | 8 |
| Total Supply Voltage (V)(Max)(+5V=5, +/-5V=10) | 44 | 44 |
| Iq per channel(Max)(mA) | 5.7 | 5.7 |
| GBW(Typ)(MHz) | 8 | 63 |
| Slew Rate(Typ)(V/us) | 1.9 | 11.9 |
| VIO (25 deg C)(Max)(mV) | 0.1 | 0.1 |
| Offset Drift(Typ)(uV/C) | 0.4 | 0.4 |
| IIB(Max)(pA) | 80000 | 80000 |
| CMRR(Min)(dB) | 100 | 100 |
| Vn at 1kHz(Typ)(nV/rtHz) | 3.2 | 3.2 |
| Rating | Catalog | Catalog |
| Pin/Package | 8PDIP, 8SOIC | 8PDIP, 8SOIC |
| Operating Temperature Range(C) | -40 to 85 | -40 to 85 |
| Approx. Price (US$) | 1.15 | 1ku | 1.20 | 1ku |
OPA27 特性
- LOW NOISE: 4.5nV/
Hz max at 1kHz
- LOW OFFSET: 100uV max
- LOW DRIFT: 0.4uV/°C
- HIGH OPEN-LOOP GAIN: 117dB min
- HIGH COMMON-MODE REJECTION: 100dB min
- HIGH POWER-SUPPLY REJECTION: 94dB min
- FITS OP-07, OP-05, AD510, AND AD517 SOCKETS
- APPLICATIONS
- PRECISION INSTRUMENTATION
- DATA ACQUISITION
- TEST EQUIPMENT
- PROFESSIONAL AUDIO EQUIPMENT
- TRANSDUCER AMPLIFIERS
- RADIATION HARD EQUIPMENT
OPA27 芯片订购指南
| 器件 | 状态 | 温度 | 价格（美元） | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| OPA27GP | ACTIVE | -40 to 85 | 1.20 | 1ku | PDIP (P) | 8 | 50 | TUBE | OPA27GP |
| OPA27GPG4 | ACTIVE | -40 to 85 | 1.20 | 1ku | PDIP (P) | 8 | 50 | TUBE | OPA27GP |
| OPA27GU | ACTIVE | -40 to 85 | 1.40 | 1ku | SOIC (D) | 8 | 75 | TUBE | OPA27 |
| OPA27GU/2K5 | ACTIVE | -40 to 85 | 1.20 | 1ku | SOIC (D) | 8 | 2500 | LARGE T&R | OPA27 |
| OPA27GU/2K5G4 | ACTIVE | -40 to 85 | 1.20 | 1ku | SOIC (D) | 8 | 2500 | LARGE T&R | OPA27 |
| OPA27GUE4 | ACTIVE | -40 to 85 | 1.40 | 1ku | SOIC (D) | 8 | 75 | TUBE | OPA27 |
OPA27 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 |
| OPA27GP | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | OPA27GP | OPA27GP |
| OPA27GPG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | OPA27GPG4 | OPA27GPG4 |
| OPA27GU | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | OPA27GU | OPA27GU |
| OPA27GU/2K5 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | OPA27GU/2K5 | OPA27GU/2K5 |
| OPA27GU/2K5G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | OPA27GU/2K5G4 | OPA27GU/2K5G4 |
| OPA27GUE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | OPA27GUE4 | OPA27GUE4 |
OPA27 应用技术支持与电子电路设计开发资源下载
- OPA27 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)
OPA27 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 |
| OPA27 评估模块 | OPA27EVM | 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 |