摘要
本设计采用增益可控的集成运放AD8367和固定增益集成运放H580两级电路实现,宽带放大器以AD8367为核心,完成压控增益放大系统的增益调整、单片机实现步长4d B的控制调节。该硬件电路增益可调,步进间隔小,且具有形式简单、频带宽、增益高、AGC动态范围广等特点。
This design is realized with two- stage circuit implementation that are controllable gain amplifier AD8367 and fixed gain Op - Amp integrated H580 . The corebroadband is amplifier of AD8367, it can complete the voltage controlled of gain amplifier system, the gain adjustment, the MCU control of step 4dB regulation. The hardware circuit can be adjusted, the step is small, and has the advantages of simple form, wide bandwidth, high gain and wide AGC range.
出处
《长春师范大学学报》
2015年第12期18-20,共3页
Journal of Changchun Normal University
基金
国家安全生产监督管理总局项目(2012-126)
关键词
放大电路
增益可控
频带宽度
amplifying circuit
gain control
bandwidth
