OPA694 宽带、低功耗、电流反馈放大器

The OPA694 is an ultra-wideband, low-power, current feedback operational amplifier featuring high slew rate and low differential gain/phase errors. An improved output stage provides ±80mA output drive with < 1.5V output voltage headroom. Low supply current with > 500MHz bandwidth meets the requirements of high-density video routers. Being a current feedback design, the OPA694 holds its bandwidth to very high gains—at a gain of 10, the OPA694 will still provide 200MHz bandwidth.

RF applications can use the OPA694 as a low-power SAW pre-amplifier. Extremely high 3rd-order intercept is provided through 70MHz at much lower quiescent power than many typical RF amplifiers.

The OPA694 is available in an industry-standard pinout in both SO-8 and SOT23-5 packages


OPA694
Iq per channel(Max)(mA) 5.8  
Slew Rate(Typ)(V/us) 1700  
Io(Typ)(mA) 80  
Number of Channels 1  
Pin/Package 5SOT-23, 8SOIC  
Acl, min stable gain(V/V) 1  
BW @ Acl(MHz) 1500  
Vio(Max)(mV) 3  
Available Channels S, D  
Vn at Flatband(Typ)(nV/rtHz) 2.1  
Approx. Price (US$) 1.25 | 1ku  
Iib(Max)(nA) 18000  
Operating Temperature Range(C) -40 to 85
OPA694 特性
OPA694 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
OPA694ID ACTIVE -40 to 85 1.60 | 1ku SOIC (D) | 8 75 | TUBE  
OPA694IDBVR ACTIVE -40 to 85 1.35 | 1ku SOT-23 (DBV) | 6 3000 | LARGE T&R  
OPA694IDBVRG4 ACTIVE -40 to 85 1.35 | 1ku SOT-23 (DBV) | 6 3000 | LARGE T&R  
OPA694IDBVT ACTIVE -40 to 85 1.55 | 1ku SOT-23 (DBV) | 6 250 | SMALL T&R  
OPA694IDBVTG4 ACTIVE -40 to 85 1.55 | 1ku SOT-23 (DBV) | 6 250 | SMALL T&R  
OPA694IDG4 ACTIVE -40 to 85 1.60 | 1ku SOIC (D) | 8 75 | TUBE  
OPA694IDR ACTIVE -40 to 85 1.35 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
OPA694IDRG4 ACTIVE -40 to 85 1.35 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
OPA694 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
OPA694ID Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA694ID OPA694ID
OPA694IDBVR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM OPA694IDBVR OPA694IDBVR
OPA694IDBVRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM OPA694IDBVRG4 OPA694IDBVRG4
OPA694IDBVT Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM OPA694IDBVT OPA694IDBVT
OPA694IDBVTG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM OPA694IDBVTG4 OPA694IDBVTG4
OPA694IDG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA694IDG4 OPA694IDG4
OPA694IDR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA694IDR OPA694IDR
OPA694IDRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA694IDRG4 OPA694IDRG4
OPA694 应用技术支持与电子电路设计开发资源下载
  1. OPA694 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)
OPA694 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
OPA694 评估模块 OPA694EVM 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