OPA698 单位增益稳定宽带限压放大器

The OPA698 is a wideband, unity-gain stable voltage-feedback op amp that offers bipolar output voltage limiting. Two buffered limiting voltages take control of the output when it attempts to drive beyond these limits. This new output limiting architecture holds the limiter offset error to ±10mV. The op amp operates linearly to within 20mV of the output limit voltages.

The combination of a narrow nonlinear range and the low limiting offset allows the limiting voltages to be set within 100mV of the desired linear output range. A fast 1ns recovery from limiting ensures that overdrive signals will be transparent to the signal channel. Implementing the limiting function at the output, as opposed to the input, gives the specified limiting accuracy for any gain, and allows the OPA698 to be used in all standard op amp applications


OPA698
Iq per channel(Max)(mA) 16.6  
Slew Rate(Typ)(V/us) 1100  
GBW(Typ)(MHz) 250  
Io(Typ)(mA) 120  
Vs(Min)(V) 5  
Vs(Max)(V) 12  
Number of Channels 1  
Pin/Package 8SOIC  
Acl, min stable gain(V/V) 1  
BW @ Acl(MHz) 450  
Diff Gain(%) 0.012  
Diff Phase(deg) 0.008  
Vio(Max)(mV) 5  
THD (Fc=1 MHz)(Typ)(dB) -90  
Settling Time (0.1%)(Typ)(ns) 15  
Offset Voltage Drift (+/-)(Max)(uV/Degrees Celsius) 20  
Available Channels S  
Vn at Flatband(Typ)(nV/rtHz) 5.6  
Approx. Price (US$) 1.90 | 1ku  
Iib(Max)(nA) 12000  
Noninverting Input Current Noise(pA/rtHz) 3  
2nd Harmonic(dBc) 74  
3rd Harmonic(dBc) 87  
@ MHz 5  
BW @ G=+2(MHz) 215  
0.1 dB BW Flatness(MHz) 30  
Operating Temperature Range(C) -40 to 85
OPA698 特性
OPA698 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
OPA698ID ACTIVE -40 to 85 2.30 | 1ku SOIC (D) | 8 75 | TUBE  
OPA698IDG4 ACTIVE -40 to 85 2.30 | 1ku SOIC (D) | 8 75 | TUBE  
OPA698IDR ACTIVE -40 to 85 1.90 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
OPA698IDRG4 ACTIVE -40 to 85 1.90 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
OPA698 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
OPA698ID Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA698ID OPA698ID
OPA698IDG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA698IDG4 OPA698IDG4
OPA698IDR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA698IDR OPA698IDR
OPA698IDRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA698IDRG4 OPA698IDRG4
OPA698 应用技术支持与电子电路设计开发资源下载
  1. OPA698 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)
OPA698 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
OPA698 评估模块 OPA698EVM 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