OPA847 具有关断状态的宽带超低噪声电压反馈运算放大器

The OPA847 combines very high gain bandwidth and large signal performance with an ultra-low input noise voltage (0.85nV/√Hz) while using only 18mA supply current. Where power saving is critical, the OPA847 also includes an optional power shutdown pin that, when pulled low, disables the amplifier and decreases the supply current to < 1% of the powered-up value. This optional feature may be left disconnected to ensure normal amplifier operation when no power-down is required.

The combination of very low input voltage and current noise, along with a 3.9GHz gain bandwidth product, make the OPA847 an ideal amplifier for wideband transimpedance applications. As a voltage gain stage, the OPA847 is optimized for a flat frequency response at a gain of +20V/V and is stable down to gains as low as +12V/V


OPA842 OPA843 OPA846 OPA847
Iq per channel(Max)(mA) 22.5   22.5   13.2   18.9  
Slew Rate(Typ)(V/us) 400   1000   625   950  
GBW(Typ)(MHz) 200   800   1750   3900  
Io(Typ)(mA) 100   100   80   75  
Vs(Min)(V) 10   10   10   10  
Vs(Max)(V) 12   12   12   12  
Number of Channels 1   1   1   1  
Pin/Package 5SOT-23, 8SOIC   5SOT-23, 8SOIC   5SOT-23, 8SOIC   8SOIC, 6SOT-23  
Acl, min stable gain(V/V) 1   3   7   12  
BW @ Acl(MHz) 400   500   500   600  
Diff Gain(%) 0.003   0.001   0.02    
Diff Phase(deg) 0.008   0.012   0.02    
Vio(Max)(mV) 1.2   1.2   0.6   0.5  
THD (Fc=1 MHz)(Typ)(dB) -100   -95   -92   -96  
Settling Time (0.1%)(Typ)(ns) 15   7.5   15   20  
Offset Voltage Drift (+/-)(Max)(uV/Degrees Celsius) 4   4   1.5   1.5  
Available Channels S   S   S, D   S  
Vn at Flatband(Typ)(nV/rtHz) 2.7   2   1.2   0.85  
Approx. Price (US$) 1.55 | 1ku   1.60 | 1ku   1.70 | 1ku   2.00 | 1ku  
Iib(Max)(nA) 37000   37000   21000   42000  
Noninverting Input Current Noise(pA/rtHz) 2.7   2.8   2.8   2.5  
2nd Harmonic(dBc) 94   96   100   105  
3rd Harmonic(dBc) 93   110   112   110  
@ MHz 5   5   5   5  
BW @ G=+2(MHz) 200        
0.1 dB BW Flatness(MHz) 56   65   140   60  
Operating Temperature Range(C) -40 to 85   -40 to 85   -40 to 85   -40 to 85
OPA847 特性
OPA847 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
OPA847ID ACTIVE -40 to 85 2.40 | 1ku SOIC (D) | 8 75 | TUBE  
OPA847IDBVR ACTIVE -40 to 85 2.00 | 1ku SOT-23 (DBV) | 6 3000 | LARGE T&R  
OPA847IDBVRG4 ACTIVE -40 to 85 2.00 | 1ku SOT-23 (DBV) | 6 3000 | LARGE T&R  
OPA847IDBVT ACTIVE -40 to 85 2.30 | 1ku SOT-23 (DBV) | 6 250 | SMALL T&R  
OPA847IDBVTG4 ACTIVE -40 to 85 2.30 | 1ku SOT-23 (DBV) | 6 250 | SMALL T&R  
OPA847IDG4 ACTIVE -40 to 85 2.40 | 1ku SOIC (D) | 8 75 | TUBE  
OPA847IDR ACTIVE -40 to 85 2.00 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
OPA847IDRG4 ACTIVE -40 to 85 2.00 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
OPA847 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
OPA847ID Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA847ID OPA847ID
OPA847IDBVR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA847IDBVR OPA847IDBVR
OPA847IDBVRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA847IDBVRG4 OPA847IDBVRG4
OPA847IDBVT Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA847IDBVT OPA847IDBVT
OPA847IDBVTG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA847IDBVTG4 OPA847IDBVTG4
OPA847IDG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA847IDG4 OPA847IDG4
OPA847IDR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA847IDR OPA847IDR
OPA847IDRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA847IDRG4 OPA847IDRG4
OPA847 应用技术支持与电子电路设计开发资源下载
  1. OPA847 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)
OPA847 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
OPA847 评估模块 OPA847EVM 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