CN0298
详情介绍
概览
产品详情
该电路把 LT1997-3与一个高速放大器相组合以将一个单端信号转换为具共模失调的差分输出。附加的补偿电容器 C1 和 C2 用于帮助调整最终的响应。从 LT1997-3 获得较高的增益将免除增设这些电容器的需要。
LT1997-3 把一个精准运算放大器与高度匹配的电阻器相结合,以形成一款用于准确地放大电压的单芯片解决方案。在未采用外部组件的情况下可实现 –13 至 +14 的增益和 0.006% (60ppm) 的准确度。LT1997-3 特别适合用作差动放大器,在此场合中,极佳的电阻器匹配可产生大于 91dB 的共模抑制比。
LT1354 是一款具有出色 AC 和 DC 性能的低功率、高速、高转换速率运算放大器。与具有类似带宽的器件相比,LT1354 拥有低得多的电源电流、较低的输入失调电压、较低的输入偏置电流和较高的 DC 增益。
工具及仿真模型
LTspice
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
To launch ready-to-run LTspice demonstration circuits for this part:
Step 1: Download and install LTspice on your computer.
Step 2: Click on the link in the section below to download a demonstration circuit.
Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.