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OPA657 1.6GHz 低噪声 FET 输入运算放大器

The OPA657 combines a high gain bandwidth, low distortion, voltage-feedback op amp with a low voltage noise JFET-input stage to offer a very high dynamic range amplifier for high precision ADC (Analog-to-Digital Converter) driving or wideband transimpedance applications. Photodiode applications will see improved noise and bandwidth using this decompensated, high gain bandwidth amplifier.

Very low level signals can be significantly amplified in a single OPA657 gain stage with exceptional bandwidth and accuracy. Having a high 1.6GHz gain bandwidth product will give > 10MHz signal bandwidths up to gains of 160V/V (44dB). The very low input bias current and capacitance will support this performance even for relatively high source impedances


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
OPA657 特性
OPA657 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
OPA657N/250 ACTIVE -40 to 85 5.45 | 100u SOT-23 (DBV) | 5 250 | SMALL T&R  
OPA657N/250G4 ACTIVE -40 to 85 5.45 | 100u SOT-23 (DBV) | 5 250 | SMALL T&R  
OPA657NB/250 ACTIVE -40 to 85 7.20 | 100u SOT-23 (DBV) | 5 250 | SMALL T&R  
OPA657NB/250G4 ACTIVE -40 to 85 7.20 | 100u SOT-23 (DBV) | 5 250 | SMALL T&R  
OPA657U ACTIVE -40 to 85 5.40 | 100u SOIC (D) | 8 75 | TUBE  
OPA657U/2K5 ACTIVE -40 to 85 4.55 | 100u SOIC (D) | 8 2500 | LARGE T&R  
OPA657U/2K5G4 ACTIVE -40 to 85 4.55 | 100u SOIC (D) | 8 2500 | LARGE T&R  
OPA657UB ACTIVE -40 to 85 7.25 | 100u SOIC (D) | 8 75 | TUBE  
OPA657UB/2K5 ACTIVE -40 to 85 6.10 | 100u SOIC (D) | 8 2500 | LARGE T&R  
OPA657UB/2K5G4 PREVIEW -40 to 85 SOIC (D) | 8  
OPA657UBG4 ACTIVE -40 to 85 7.25 | 100u SOIC (D) | 8 75 | TUBE  
OPA657UG4 ACTIVE -40 to 85 5.40 | 100u SOIC (D) | 8 75 | TUBE  
OPA657 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
OPA657N/250 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR OPA657N/250 OPA657N/250
OPA657N/250G4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR OPA657N/250G4 OPA657N/250G4
OPA657NB/250 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR OPA657NB/250 OPA657NB/250
OPA657NB/250G4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR OPA657NB/250G4 OPA657NB/250G4
OPA657U Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR OPA657U OPA657U
OPA657U/2K5 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR OPA657U/2K5 OPA657U/2K5
OPA657U/2K5G4 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR OPA657U/2K5G4 OPA657U/2K5G4
OPA657UB Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR OPA657UB OPA657UB
OPA657UB/2K5 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR OPA657UB/2K5 OPA657UB/2K5
OPA657UBG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR OPA657UBG4 OPA657UBG4
OPA657UG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR OPA657UG4 OPA657UG4
OPA657 应用技术支持与电子电路设计开发资源下载
  1. OPA657 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. PowerPADTM 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)
OPA657 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 OPA657EVM 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