Other Parts Discussed in Thread: OPA695 While this design may still yield acceptable results in the application, it is a simple matter to adjust these resistor values slightly to get perfect gain match from the two output currents to the amplifier output…
Other Parts Discussed in Thread: OPA695 , OPA690 , OP07 TI的贴片运放opa690(8脚)和opa695(8脚)接上同相放大电路就发热,也没有正常工作,8脚是断开的,电压接的正负5伏, 同样的电路接入op07这类的直插运放就能正常工作,跪求工程师解答!
Other Parts Discussed in Thread: OPA695 用opa695做一个反向放大10倍的电路,频率为10MHz,电路图如下:
测试的时候发现,增益跟理论值相差很大,在低频时候最大也就是3倍,到达MHz级别,增益更小
然而 运放输出信号很干净 不失真 也不发热 貌似正常工作 是不是因为反馈电阻值没取手册上的推荐值二引起的呢?请各位老师,前辈指点一二啊