OPA2141 10MHz 单电源低噪声 JFET 精密放大器

The OPA141, OPA2141, and OPA4141 amplifier family is a series of low-power JFET input amplifiers that feature good drift and low input bias current. The rail-to-rail output swing and input range that includes V– allow designers to take advantage of the low-noise characteristics of JFET amplifiers while also interfacing to modern, single-supply, precision analog-to-digital converters (ADCs) and digital-to-analog converters (DACs).

The OPA2141 achieves 10MHz unity-gain bandwidth and 20V/µs slew rate while consuming only 1.8mA (typ) of quiescent current. It runs on a single 4.5 to 36V supply or dual ±2.25V to ±18V supplies.

All versions are fully specified from –40°C to +125°C for use in the most challenging environments


OPA141 OPA2141 OPA4141
Number of Channels 1   2   4  
Total Supply Voltage (V)(Min)(+5V=5, +/-5V=10) 4.5   4.5   4.5  
Total Supply Voltage (V)(Max)(+5V=5, +/-5V=10) 36   36   36  
Iq per channel(Max)(mA) 2.3   2.3   2.3  
GBW(Typ)(MHz) 10   10   10  
Slew Rate(Typ)(V/us) 20   20   20  
VIO (25 deg C)(Max)(mV) 3.5   3.5   3.5  
Offset Drift(Typ)(uV/C) 2   2   2  
IIB(Max)(pA) 20   20   20  
CMRR(Min)(dB) 120   120   120  
Vn at 1kHz(Typ)(nV/rtHz) 6.5   6.5   6.5  
Rail-Rail Out   Out   Out  
Io(Typ)(mA) 25   25   25  
Rating Catalog   Catalog   Catalog  
Pin/Package 8MSOP, 8SOIC   8MSOP, 8SOIC   14SOIC, 14TSSOP  
Operating Temperature Range(C) -40 to 125   -40 to 125   -40 to 125  
Approx. Price (US$) 0.85 | 1ku   1.30 | 1ku   1.75 | 1ku
OPA2141 特性
OPA2141 芯片订购指南
器件 状态   价格(美元) 封装 | 引脚 封装数量 | 封装载体 丝印标记
OPA2141AID ACTIVE -40 to 125 1.05 | 1ku SOIC (D) | 8 75 | TUBE  
OPA2141AIDGKR ACTIVE -40 to 125 0.85 | 1ku MSOP (DGK) | 8 2500 | LARGE T&R  
OPA2141AIDGKT ACTIVE -40 to 125 1.00 | 1ku MSOP (DGK) | 8 250 | SMALL T&R  
OPA2141AIDR ACTIVE -40 to 125 0.85 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
OPA2141 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
OPA2141AID Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA2141AID OPA2141AID
OPA2141AIDGKR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA2141AIDGKR OPA2141AIDGKR
OPA2141AIDGKT Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA2141AIDGKT OPA2141AIDGKT
OPA2141AIDR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA2141AIDR OPA2141AIDR
OPA2141 应用技术支持与电子电路设计开发资源下载
  1. OPA2141 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)
OPA2141 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
OPA2141 评估模块 OPA2141EVM 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