LF347 四路通用 JFET 输入运算放大器
These devices are low-cost, high-speed, JFET-input operational amplifiers. They require low supply current yet maintain a large gain-bandwidth product and a fast slew rate. In addition, their matched high-voltage JFET inputs provide very low input bias and offset current.
The LF347 and LF347B can be used in applications such as high-speed integrators, digital-to-analog converters, sample-and-hold circuits, and many other circuits.
The LF347 and LF347B are characterized for operation from 0°C to 70°C
| LF347 | |
| Iq per channel(Max)(mA) | 2.75 |
| VIO (25 deg C)(Max)(mV) | 10 |
| CMRR(Min)(dB) | 70 |
| Vn at 1kHz(Typ)(nV/rtHz) | 18 |
| IIB(Max)(pA) | 200 |
| Slew Rate(Min)(V/us) | 8 |
| Slew Rate(Typ)(V/us) | 13 |
| GBW(Typ)(MHz) | 3 |
| Spec'd at Vs(V) | +/-15 |
| VIO (Full Range)(Max)(mV) | 13 |
| Vs(Min)(V) | 7 |
| Vs(Max)(V) | 36 |
| Pin/Package | 14PDIP, 14SOIC |
| Vio(Max)(mV) | 13 |
| Open Loop Gain(Min)(dB) | 88 |
| Offset Drift(Typ)(uV/C) | 18 |
| IQ Per Amp (+/-)(Max)(mA) | 2.75 |
| Offset Voltage (+/-)(Max)(mV) | 13 |
| Number of Channels | 4 |
| Approx. Price (US$) | 0.31 | 1ku |
| Operating Temperature Range(C) | 0 to 70 |
| Total Supply Voltage (V)(Min)(+5V=5, +/-5V=10) | 7 |
| Total Supply Voltage (V)(Max)(+5V=5, +/-5V=10) | 36 |
LF347 特性
- Low Input Bias Current...50 pA Typ
- Low Input Noise Current
0.01 pA/
Hz\ Typ
- Low Total Harmonic Distortion
- Low Supply Current... 8 mA Typ
- Gain Bandwidth...3 MHz Typ
- High Slew Rate...13 V/us Typ
- Pin Compatible With the LM348
LF347 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 |
| LF347D | ACTIVE | 0 to 70 | 0.37 | 1ku | SOIC (D) | 14 | 50 | TUBE | |
| LF347DE4 | ACTIVE | 0 to 70 | 0.37 | 1ku | SOIC (D) | 14 | 50 | TUBE | |
| LF347DG4 | ACTIVE | 0 to 70 | 0.37 | 1ku | SOIC (D) | 14 | 50 | TUBE | |
| LF347DR | ACTIVE | 0 to 70 | 0.31 | 1ku | SOIC (D) | 14 | 2500 | LARGE T&R | |
| LF347DRE4 | ACTIVE | 0 to 70 | 0.31 | 1ku | SOIC (D) | 14 | 2500 | LARGE T&R | |
| LF347DRG4 | ACTIVE | 0 to 70 | 0.31 | 1ku | SOIC (D) | 14 | 2500 | LARGE T&R | |
| LF347N | ACTIVE | 0 to 70 | 0.34 | 1ku | PDIP (N) | 14 | 25 | TUBE | |
| LF347NE4 | ACTIVE | 0 to 70 | 0.34 | 1ku | PDIP (N) | 14 | 25 | TUBE |
LF347 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 |
| LF347D | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | LF347D | LF347D |
| LF347DE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | LF347DE4 | LF347DE4 |
| LF347DG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | LF347DG4 | LF347DG4 |
| LF347DR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | LF347DR | LF347DR |
| LF347DRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | LF347DRE4 | LF347DRE4 |
| LF347DRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | LF347DRG4 | LF347DRG4 |
| LF347N | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | LF347N | LF347N |
| LF347NE4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | LF347NE4 | LF347NE4 |
LF347 应用技术支持与电子电路设计开发资源下载
- LF347 数据资料 dataSheet 下载.PDF
- TI 德州仪标准线性放大器产品选型与价格 . xls
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
- 在 PSPICE 中使用德州仪器 (TI) SPICE 模型 (zhca088.HTM, 8 KB)
- PowerPADTM Thermally Enhanced Package (slma002g.HTM, 8 KB)
- 运算放大器的单电源操作 (PDF 2174 KB)
- Tuning in Amplifiers (PDF 44 KB)
- Op Amp Performance Analysis (PDF 76 KB)
- An Error Analysis of the ISO102 in a Small Signal Measuring Application (PDF 29 KB)
- Level Shifting Signals with Differential Amplifiers (PDF 23 KB)
- Operational Amplifier Macromodels: A Comparison (PDF 59 KB)