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OPA2349 1uA 轨至轨 CMOS 运算放大器

The OPA349 and OPA2349 are ultra-low power operational amplifiers that provide 70kHz bandwidth with only 1uA quiescent current. These rail-to-rail input and output amplifiers are specifically designed for battery-powered applications. The input common-mode voltage range extends 200mV beyond the power-supply rails and the output swings to within 350mV of the rails, maintaining wide dynamic range. Unlike some micropower op amps, these parts are unity-gain stable and require no external compensation to achieve wide bandwidth. The OPA349 features a low input bias current that allows the use of large source and feedback resistors.

The OPA349 can be operated with power supplies from 1.8V to 5.5V with little change in performance, ensuring continuing superior performance even in low battery situations


OPA2349 OPA349
Number of Channels 2 1
Total Supply Voltage (V)(Min)(+5V=5, +/-5V=10) 1.8 1.8
Total Supply Voltage (V)(Max)(+5V=5, +/-5V=10) 5.5 5.5
Iq per channel(Max)(mA) 0.002 0.002
GBW(Typ)(MHz) 0.065 0.065
Slew Rate(Typ)(V/us) 0.02 0.02
VIO (25 deg C)(Max)(mV) 10 10
Offset Drift(Typ)(uV/C) 15 15
IIB(Max)(pA) 10 10
CMRR(Min)(dB) 52 52
Vn at 1kHz(Typ)(nV/rtHz) 300 300
Rail-Rail In,Out In,Out
Rating Catalog Catalog
Pin/Package 8SOIC, 8SOT-23 5SC70, 5SOT-23, 8SOIC
Approx. Price (US$) 0.65 | 1ku 0.45 | 1ku
OPA2349 特性
OPA2349 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
OPA2349EA/250 ACTIVE   0.75 | 1ku SOT-23 (DBV) | 5 250 | SMALL T&R  
OPA2349EA/3K ACTIVE   0.65 | 1ku SOT-23 (DBV) | 5 3000 | LARGE T&R  
OPA2349UA ACTIVE   0.80 | 1ku SOIC (D) | 8 75 | TUBE  
OPA2349UA/2K5 ACTIVE   0.65 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
OPA2349UA/2K5G4 ACTIVE   0.65 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
OPA2349UAG4 ACTIVE   0.80 | 1ku SOIC (D) | 8 75 | TUBE  
OPA2349 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
OPA2349EA/250 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR OPA2349EA/250 OPA2349EA/250
OPA2349EA/3K Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR OPA2349EA/3K OPA2349EA/3K
OPA2349UA Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR OPA2349UA OPA2349UA
OPA2349UA/2K5 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR OPA2349UA/2K5 OPA2349UA/2K5
OPA2349UA/2K5G4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR OPA2349UA/2K5G4 OPA2349UA/2K5G4
OPA2349UAG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR OPA2349UAG4 OPA2349UAG4
OPA2349 应用技术支持与电子电路设计开发资源下载
  1. OPA2349 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)
OPA2349 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
OPA2349 评估模块 OPA2349EVM 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