I am not sure if LM7171 is capable for the rectifier, because I only have single power supply. I have used schematic diagram as below to build a rectifier with LM358, it works perfectly fine with low frequency signal. But the signal that I want to process with is 50MHz analog signal, I have already amplified it with LM7171, and now I want to design a peak detector/integrator circuit for it. From what I heard, Before the integrator, I will need a rectifier.Do you have a schematic?
How are the input voltage and out voltage (the gain of the amplifier that you want to use)?
How is the signal sine wave or square wave?
LM7171 - unity-gain bandwidth of 200 MHz.
How is the situation, did you measure it with O'scope?I have tried different design with LM7171, they didn't work...
I know LM7171 working in 200MHz, that is why I use it to design my rectifier. The value of R1 and R2 are 1K ohms. and yes, I tested it on the oscilloscope with circuit diagram I uploaded, it doesn't work at all.How are the values of R2 and R1?
The LM7171 working in 200Mhz only with Gain=1, it means that gain = R2/R1 = 1.
How is the situation, did you measure it with O'scope?
Does it means that no any output?it doesn't work at all.
Yes, the output just a straight line, and I have tried different connection, sometime I just get the output that looks the same as input.Does it means that no any output?
I am using 1N4007 here, and we don't have dual power supply. The Vcc voltage is around 3.6V, but it can be changed.DO you have Schottky diode to replace 1N4148, do you use 1N41418?
or you just try to do the normal amplifier in 50 Mhz and to see what will be happens?
The other two issues are change the R1, R2 to 100 Ohms and using dual power supply to try
And you didn't mention the Vcc voltage?
by Aaron Carman
by Jeff Child