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
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
  1. OPA656 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器仪运算放大器 (Op Amp)产品选型与价格 . xls
  3. 所选封装材料的热学和电学性质 (PDF 645 KB)
  4. 高速数据转换 (PDF 1967 KB)
  5. 在 PSPICE 中使用德州仪器 (TI) SPICE 模型 (zhca088.HTM, 8 KB)
  6. PowerPAD™ Thermally Enhanced Package (slma002g.HTM, 8 KB)
  7. 运算放大器的单电源操作 (PDF 2174 KB)
  8. Tuning in Amplifiers (PDF 44 KB)
  9. Op Amp Performance Analysis (PDF 76 KB)
  10. An Error Analysis of the ISO102 in a Small Signal Measuring Application (PDF 29 KB)
  11. Level Shifting Signals with Differential Amplifiers (PDF 23 KB)
  12. 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