Hi Wouter,
Was there a problem with the resistors?
I've been running some simulations on this. First, I noticed something weird with the I2 pin in the simulation.
Now I've recreated the circuit and found that it works but the input current into…
Part Number: TIDA-00440 Other Parts Discussed in Thread: LOG200 , LOG114 , LMC6082 Tool/software: Hello,
I would be interested to know the solution to the problem, as I have exactly the same challenge in my testing setup. I was planing to use a LOG114 though…
Part Number: REF200 Other Parts Discussed in Thread: LOG200
Tool/software:
Hello, engineers from Texas Instruments, We are planning to test the logarithmic amplifier, but the REF200 we are using cannot simulate the PMT (-100uA-0uA). When it enters the…
Hello,
Optional capacitor C19 is normally not populated on the EVM board, and can be use to add an RC low-pass filter at the I1 input pin of the LOG200 logarithmic amplifier by changing the value of R36 (0Ω default value on LOG200EVM). This is a…
嗨 曹品 ,
I am going to close this inquiry. I hope that you know how to design the Log114 or Log200 amplifier.
If you have additional questions, please let us know.
Best,
Raymond
HI Henry,
As alternate solutions, you could consider using a programmable gain transimpedance amplifier or a Logarithmic amplifier solution.
Since the application requires to measure a wide range of current, from 10nA to 1mA., and if the application requires…