frilance
Member level 1
Hi fellas,
I'm working on electronics related with low noise technologies and I want to improve a previous design of a Transimpedance amplifier which used the OpAmp LMH6624. I was looking for really different stuff from the same and other manufacturers, checking if they released new models improving its noise characteristics, but the thing is after my search I conclude that none of them (i have even a comparission with the new one LMH6629, or EL5130) gives better results. I'm trying to obtain a transimpedance amplifier with a bandwidth up to 50 MHz approx, and an input current noise density below 3 pA/root(Hz) up to 30 MHz. As I said, the previously used LMH6624 gives me the best peformance with 60 MHz bandwith and a current noise density of 3.9 pA/root(Hz) for 30 MHz. (Cf = 0.8pF Rf=5 Kohms).
Maybe somebody around knows better than me about low noise amplifier and can recommend me one with lower voltage noise density and lower input capacitance, because I couldn't find it.
Thank you in advance.
Regards.
I'm working on electronics related with low noise technologies and I want to improve a previous design of a Transimpedance amplifier which used the OpAmp LMH6624. I was looking for really different stuff from the same and other manufacturers, checking if they released new models improving its noise characteristics, but the thing is after my search I conclude that none of them (i have even a comparission with the new one LMH6629, or EL5130) gives better results. I'm trying to obtain a transimpedance amplifier with a bandwidth up to 50 MHz approx, and an input current noise density below 3 pA/root(Hz) up to 30 MHz. As I said, the previously used LMH6624 gives me the best peformance with 60 MHz bandwith and a current noise density of 3.9 pA/root(Hz) for 30 MHz. (Cf = 0.8pF Rf=5 Kohms).
Maybe somebody around knows better than me about low noise amplifier and can recommend me one with lower voltage noise density and lower input capacitance, because I couldn't find it.
Thank you in advance.
Regards.