OPA656 宽带单位增益稳定 FET 输入运算放大器
The OPA656 combines a very wideband, unity-gain stable, voltage-feedback op amp with a FET-input stage to offer an ultra high dynamic-range amplifier for ADC (Analog-to-Digital Converter) buffering and transimpedance applications. Extremely low DC errors give good precision in optical applications.
The high unity-gain stable bandwidth and JFET input allows exceptional performance in high-speed, low-noise integrators.
The high input impedance and low bias current provided by the FET input is supported by the ultra-low 7nV/
Hz input voltage noise to achieve a very low integrated noise in wideband photodiode transimpedance applications.
Broad transimpedance bandwidths are achievable given the OPA656’s high 230MHz gain bandwidth product
| OPA653 | OPA656 | OPA657 | OPA659 | |
| Iq per channel(Max)(mA) | 33.5 | 16 | 16.3 | 33.5 |
| Slew Rate(Typ)(V/us) | 2675 | 290 | 700 | 2550 |
| GBW(Typ)(MHz) | 230 | 1600 | ||
| Io(Typ)(mA) | 70 | 70 | 70 | 70 |
| Vs(Min)(V) | 7 | 10 | 8 | 7 |
| Vs(Max)(V) | 13 | 12 | 12 | 13 |
| Number of Channels | 1 | 1 | 1 | 1 |
| Pin/Package | 5SOT-23, 8SON | 5SOT-23, 8SOIC | 5SOT-23, 8SOIC | 5SOT-23, 8SON |
| Acl, min stable gain(V/V) | 2 | 1 | 7 | 2 |
| BW @ Acl(MHz) | 500 | 500 | 340 | 650 |
| Diff Gain(%) | 0.02 | |||
| Diff Phase(deg) | 0.05 | |||
| Vio(Max)(mV) | 5 | 0.6 | 0.6 | 5 |
| THD (Fc=1 MHz)(Typ)(dB) | 72 | -74 | -72 | 78 |
| Settling Time (0.1%)(Typ)(ns) | 16 | 11 | ||
| Offset Voltage Drift (+/-)(Max)(uV/Degrees Celsius) | 30 | 2 | 12 | 40 |
| Available Channels | S | S | S | S |
| Vn at Flatband(Typ)(nV/rtHz) | 6.1 | 7 | 5 | 8.9 |
| Approx. Price (US$) | 2.95 | 1ku | 4.55 | 100u | 5.10 | 100u | 2.95 | 1ku |
| Iib(Max)(nA) | 1.2 | 0.002 | 0.02 | 1.2 |
| Noninverting Input Current Noise(pA/rtHz) | 0.001 | 0.001 | ||
| 2nd Harmonic(dBc) | 72 | 74 | 74 | 79 |
| 3rd Harmonic(dBc) | 90 | 100 | 106 | 100 |
| @ MHz | 10 | 5 | 5 | 10 |
| BW @ G=+2(MHz) | 500 | 200 | 335 | |
| 0.1 dB BW Flatness(MHz) | 75 | 30 | 30 | 55 |
| Operating Temperature Range(C) | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
OPA656 特性
- 500MHz UNITY-GAIN BANDWIDTH
- LOW INPUT BIAS CURRENT: 2pA
- LOW OFFSET AND DRIFT: ±0.25mV, ±2uV/°C
- LOW DISTORTION: 74dB SFDR at 5MHz
- HIGH OUTPUT CURRENT: 70mA
- LOW INPUT VOLTAGE NOISE: 7nV/Hz
- APPLICATIONS
- WIDEBAND PHOTODIODE AMPLIFIERS
- SAMPLE-AND-HOLD BUFFERS
- CCD OUTPUT BUFFERS
- ADC INPUT BUFFERS
- WIDEBAND PRECISION AMPLIFIERS
- TEST AND MEASUREMENT FRONT ENDS
OPA656 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 |
| OPA656N/250 | ACTIVE | -40 to 85 | 5.45 | 100u | SOT-23 (DBV) | 5 | 250 | SMALL T&R | |
| OPA656N/250G4 | ACTIVE | -40 to 85 | 5.45 | 100u | SOT-23 (DBV) | 5 | 250 | SMALL T&R | |
| OPA656NB/250 | ACTIVE | -40 to 85 | 7.20 | 100u | SOT-23 (DBV) | 5 | 250 | SMALL T&R | |
| OPA656NB/250G4 | ACTIVE | -40 to 85 | 7.20 | 100u | SOT-23 (DBV) | 5 | 250 | SMALL T&R | |
| OPA656U | ACTIVE | -40 to 85 | 5.40 | 100u | SOIC (D) | 8 | 75 | TUBE | |
| OPA656U/2K5 | ACTIVE | -40 to 85 | 4.55 | 100u | SOIC (D) | 8 | 2500 | LARGE T&R | |
| OPA656U/2K5G4 | ACTIVE | -40 to 85 | 4.55 | 100u | SOIC (D) | 8 | 2500 | LARGE T&R | |
| OPA656UB | ACTIVE | -40 to 85 | 7.25 | 100u | SOIC (D) | 8 | 75 | TUBE | |
| OPA656UB/2K5 | ACTIVE | -40 to 85 | 6.10 | 100u | SOIC (D) | 8 | 2500 | LARGE T&R | |
| OPA656UB/2K5G4 | PREVIEW | -40 to 85 | SOIC (D) | 8 | |||
| OPA656UBG4 | ACTIVE | -40 to 85 | 7.25 | 100u | SOIC (D) | 8 | 75 | TUBE | |
| OPA656UG4 | ACTIVE | -40 to 85 | 5.40 | 100u | SOIC (D) | 8 | 75 | TUBE |
OPA656 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 |
| OPA656N/250 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | OPA656N/250 | OPA656N/250 |
| OPA656N/250G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | OPA656N/250G4 | OPA656N/250G4 |
| OPA656NB/250 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | OPA656NB/250 | OPA656NB/250 |
| OPA656NB/250G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | OPA656NB/250G4 | OPA656NB/250G4 |
| OPA656U | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | OPA656U | OPA656U |
| OPA656U/2K5 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | OPA656U/2K5 | OPA656U/2K5 |
| OPA656U/2K5G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | OPA656U/2K5G4 | OPA656U/2K5G4 |
| OPA656UB | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | OPA656UB | OPA656UB |
| OPA656UB/2K5 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | OPA656UB/2K5 | OPA656UB/2K5 |
| OPA656UBG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | OPA656UBG4 | OPA656UBG4 |
| OPA656UG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | OPA656UG4 | OPA656UG4 |
OPA656 应用技术支持与电子电路设计开发资源下载
- OPA656 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)
OPA656 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 |
| OPA380 评估模块 | OPA656EVM | 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 |