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OPA445 高电压 FET 输入运算放大器

The OPA445 is a monolithic operational amplifier capable of operation from power supplies up to ±45V and output currents of 15mA. It is useful in a wide variety of applications requiring high output voltage or large common-mode voltage swings.

The OPA445's high slew rate provides wide powerbandwidth response, which is often required for high-voltage applications. FET input circuitry allows the use of high-impedance feedback networks, thus minimizing their output loading effects. Laser trimming of the input circuitry yields low input offset voltage and drift.

The OPA445 is available in standard pinout TO-99, DIP-8, and SO-8 surface-mount packages as well as an SO-8 PowerPAD package for reducing junction temperature


OPA445
Number of Channels 1
Total Supply Voltage (V)(Min)(+5V=5, +/-5V=10) 20
Total Supply Voltage (V)(Max)(+5V=5, +/-5V=10) 90
Iq per channel(Max)(mA) 4.7
GBW(Typ)(MHz) 2
Slew Rate(Min)(V/us) 5
Slew Rate(Typ)(V/us) 15
VIO (25 deg C)(Max)(mV) 5
Offset Drift(Typ)(uV/C) 10
IIB(Max)(pA) 100
CMRR(Min)(dB) 80
Vn at 1kHz(Typ)(nV/rtHz) 15
Io(Typ)(mA) 15
Offset Voltage (+/-)(Max)(mV) 3
Pin/Package 8PDIP, 8SO PowerPAD, 8SOIC
Approx. Price (US$) 4.75 | 1ku
OPA445 特性
OPA445 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
OPA445ADDA ACTIVE   5.70 | 1ku SO PowerPAD (DDA) | 8 75 | TUBE  
OPA445ADDAG4 ACTIVE   5.70 | 1ku SO PowerPAD (DDA) | 8 75 | TUBE  
OPA445ADDAR ACTIVE   4.75 | 1ku SO PowerPAD (DDA) | 8 2500 | LARGE T&R  
OPA445ADDARG4 ACTIVE   4.75 | 1ku SO PowerPAD (DDA) | 8 2500 | LARGE T&R  
OPA445AP ACTIVE   4.75 | 1ku PDIP (P) | 8 50 | TUBE  
OPA445APG4 ACTIVE   4.75 | 1ku PDIP (P) | 8 50 | TUBE  
OPA445AU ACTIVE   5.70 | 1ku SOIC (D) | 8 75 | TUBE  
OPA445AU/2K5 ACTIVE   4.75 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
OPA445AU/2K5E4 ACTIVE   4.75 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
OPA445AUG4 ACTIVE   5.70 | 1ku SOIC (D) | 8 75 | TUBE  
OPA445 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
OPA445ADDA Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR OPA445ADDA OPA445ADDA
OPA445ADDAG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR OPA445ADDAG4 OPA445ADDAG4
OPA445ADDAR Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR OPA445ADDAR OPA445ADDAR
OPA445ADDARG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR OPA445ADDARG4 OPA445ADDARG4
OPA445AP Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg Type OPA445AP OPA445AP
OPA445APG4 Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg Type OPA445APG4 OPA445APG4
OPA445AU Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR OPA445AU OPA445AU
OPA445AU/2K5 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR OPA445AU/2K5 OPA445AU/2K5
OPA445AU/2K5E4 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR OPA445AU/2K5E4 OPA445AU/2K5E4
OPA445AUG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR OPA445AUG4 OPA445AUG4
OPA445 应用技术支持与电子电路设计开发资源下载
  1. OPA445 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. PowerPADTM 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)
OPA445 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
OPA445 评估模块 OPA445EVM 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