THS3121 单路低噪声高输出驱动 475mA 电流反馈放大器

The THS3120 and THS3121 are low-noise, high-voltage, high output current drive, current-feedback amplifiers designed to operate over a wide supply range of ±5 V to ±15 V for today's high-performance applications.

The THS3120 offers a power saving mode by providing a power-down pin for reducing the 7-mA quiescent current of the device, when the device is not active.

These amplifiers provide well-regulated ac performance characteristics. Most notably, the 0.1-dB flat bandwidth is exceedingly high, reaching beyond 90 MHz. The unity-gain bandwidth of 130 MHz allows for good distortion characteristics at 10 MHz. Coupled with high 1700-V/µs slew rate, the THS3120 and THS3121 amplifiers allow for high output voltage swings at high frequencies


THS3121
Iq per channel(Max)(mA)  
Slew Rate(Typ)(V/us) 1700  
Io(Typ)(mA) 475  
Vs(Min)(V) 10  
Vs(Max)(V) 30  
Number of Channels 1  
Pin/Package 8MSOP-PowerPAD, 8SOIC  
Acl, min stable gain(V/V) 1  
BW @ Acl(MHz) 130  
Diff Gain(%) 0.007  
Diff Phase(deg) 0.018  
Vio(Max)(mV) 8  
THD (Fc=1 MHz)(Typ)(dB) -78  
Settling Time (0.1%)(Typ)(ns) 11  
Offset Voltage Drift (+/-)(Max)(uV/Degrees Celsius) 10  
Available Channels S  
Vn at Flatband(Typ)(nV/rtHz) 2.5  
Approx. Price (US$) 2.25 | 1ku  
Iib(Max)(nA) 6000  
Noninverting Input Current Noise(pA/rtHz) 1  
2nd Harmonic(dBc) 51  
3rd Harmonic(dBc) 50  
@ MHz 10  
BW @ G=+2(MHz) 120  
0.1 dB BW Flatness(MHz) 90  
Inverting Input Current Noise(pA/rtHz) 10  
Operating Temperature Range(C) -40 to 85
THS3121 特性
THS3121 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
THS3121CD ACTIVE -40 to 85 2.70 | 1ku SOIC (D) | 8 75 | TUBE  
THS3121CDG4 ACTIVE -40 to 85 2.70 | 1ku SOIC (D) | 8 75 | TUBE  
THS3121CDR ACTIVE -40 to 85 2.25 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
THS3121CDRG4 ACTIVE -40 to 85 2.25 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
THS3121DGN PREVIEW -40 to 85   MSOP-PowerPAD (DGN) | 8    
THS3121DGNR PREVIEW -40 to 85   MSOP-PowerPAD (DGN) | 8    
THS3121ID ACTIVE -40 to 85 2.70 | 1ku SOIC (D) | 8 75 | TUBE  
THS3121IDG4 ACTIVE -40 to 85 2.70 | 1ku SOIC (D) | 8 75 | TUBE  
THS3121IDGN ACTIVE -40 to 85 2.70 | 1ku MSOP-PowerPAD (DGN) | 8 80 | TUBE  
THS3121IDGNG4 ACTIVE -40 to 85 2.70 | 1ku MSOP-PowerPAD (DGN) | 8 80 | TUBE  
THS3121 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
THS3121CD Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM THS3121CD THS3121CD
THS3121CDG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM THS3121CDG4 THS3121CDG4
THS3121CDR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM THS3121CDR THS3121CDR
THS3121CDRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM THS3121CDRG4 THS3121CDRG4
THS3121ID Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM THS3121ID THS3121ID
THS3121IDG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM THS3121IDG4 THS3121IDG4
THS3121IDGN Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM THS3121IDGN THS3121IDGN
THS3121IDGNG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM THS3121IDGNG4 THS3121IDGNG4
THS3121 应用技术支持与电子电路设计开发资源下载
  1. THS3121 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)
THS3121 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
THS3121 评估模块 THS3121EVM 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