Precision Amplifiers

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Precision Amplifiers

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Related Posts

  • Forum Post: INA333, integrated active filter

    richard payne62974
    Is there a way to integrate INA333 with active filter (butterworth) so I can eliminate op-amp that done this? INA333 is used to measure voltage drop as part of current sense. I have +5V and 2.5V comm.
    on May 28, 2011

  • Forum Post: Low Distortion Active Filter using THS4531?

    Ryan Gorman
    I need to improve the total-harmonic distortion of a differential signal source (limited to about -105dBc) to around -115dBc. The idea is to use an active filter with a cutoff frequency centered at my test tone (10KHz) to filter the harmonics of the signal without adding additional distortion. The filter...
    on Jun 1, 2012

  • Forum Post: Design active low pass filter

    xu yang1
    Dear people, I am designing a low pass filter using opa227 for my application. I plan to have corner frequency at 1Hz, and with gian 1e9 because my signal is very small. And I decide to use six order with 3 stages, for each stage, I use one order inverting op amp topology with gain of 10 and another...
    on Jul 8, 2012

  • Forum Post: Poor performance of active high pass filter at high gain using TLC2272A

    Christopher Wiebe
    I am using the TLC2272A to design a Sallen-Key HPF. The target -3dB is 25 Hz. I have tried a few designs playing with the passband gain. The three gain values I have tried are x5, x25 and x50. I have noticed that at higher gain the HPF performance is poor, the -3dB point shifts to higher frequency and...
    on Oct 12, 2012

  • Forum Post: how can i design the circuit to amplfy the current singal from 8.7nA to 600uA.

    zumao xu
    Hi: our current singal is from 8.7nA to 600uA ,and the singal frequecy is less than 20hZ ,the AD reference voltage is 1.2V, and the measurement accuracy is 0.5%. At first ,i selected the OPA2376 to amplify the singal becuase the offset voltage and bias current is very good for us .the circuit stucture...
    on Nov 26, 2012

  • Forum Post: Question of noise analysis on OPA132

    BRIAN PENG
    Dear sir: I got problem when getting the noise density plot on OPA132 with PSPICE simulation. The circuit set up and noise plot is as attached. There's a rise on 35~40Mhz (OPA132_CIRCUIT.JPG and OPA132_NOISE_PLOT.JPG) . Is that because of the inherent behavior of the OPAmp? It is hard to remove...
    on Dec 10, 2012

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