OPA842 宽带低失真单位增益稳定的电压反馈运算放大器

The OPA842 provides a level of speed and dynamic range previously unattainable in a monolithic op amp. Using unity-gain stable, voltage-feedback architecture with two internal gain stages, the OPA842 achieves exceptionally low harmonic distortion over a wide frequency range. The classic differential input provides all the familiar benefits of precision op amps, such as bias current cancellation and very low inverting current noise compared with wideband current differential gain/phase performance, low-voltage noise, and high output current drive make the OPA842 ideal for most high dynamic range applications.

Unity-gain stability makes the OPA842 particularly suitable for low-gain differential amplifiers, transimpedance amplifiers, gain of +2 video line drivers, wideband integrators, and low-distortion analog-to-digital converter (ADC) buffers


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
OPA842 特性
OPA842 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
OPA842ID ACTIVE -40 to 85 1.80 | 1ku SOIC (D) | 8 75 | TUBE  
OPA842IDBVR ACTIVE -40 to 85 1.55 | 1ku SOT-23 (DBV) | 5 3000 | LARGE T&R  
OPA842IDBVRG4 ACTIVE -40 to 85 1.55 | 1ku SOT-23 (DBV) | 5 3000 | LARGE T&R  
OPA842IDBVT ACTIVE -40 to 85 1.75 | 1ku SOT-23 (DBV) | 5 250 | SMALL T&R  
OPA842IDBVTG4 ACTIVE -40 to 85 1.75 | 1ku SOT-23 (DBV) | 5 250 | SMALL T&R  
OPA842IDG4 ACTIVE -40 to 85 1.80 | 1ku SOIC (D) | 8 75 | TUBE  
OPA842IDR ACTIVE -40 to 85 1.55 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
OPA842IDRG4 ACTIVE -40 to 85 1.55 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
OPA842 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
OPA842ID Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA842ID OPA842ID
OPA842IDBVR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA842IDBVR OPA842IDBVR
OPA842IDBVRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA842IDBVRG4 OPA842IDBVRG4
OPA842IDBVT Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA842IDBVT OPA842IDBVT
OPA842IDBVTG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA842IDBVTG4 OPA842IDBVTG4
OPA842IDG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA842IDG4 OPA842IDG4
OPA842IDR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA842IDR OPA842IDR
OPA842IDRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA842IDRG4 OPA842IDRG4
OPA842 应用技术支持与电子电路设计开发资源下载
  1. OPA842 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)
OPA842 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
OPA842 评估模块 OPA842EVM 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