• Adding Gain to ADC Drive Stage of LTC2387-16 - Noise and Distortion performance considerations

    I am considering using the ADA4945-1 to drive the LTC2387-16 but need some gain at this stage to condition the signal before the ADC. Should I expect the noise and distortion to degrade if I add gain to the ADC driver circuit?

  • Ask a question about LTC2387-16

    Hi,

    As below, this is the description in LTC2387-16 datasheet. It says that VCM is not recommended for single-ended to differential circuits that pass the VCM noise to only one ADC input.

    I don't know why? would you please explain it in details or show…

  • LTC2387-16 and REFBUF to REFGND capacitor

    Dear Community Members,

    We want to use LTC2387-16 in out project but for some reasons we can not use 10uF 0805 capacitors (no certified components avaiable). The datasheet recommends to use 10uF X7R 0805 capacitor between REFBUF to REFGND pins to decouple…

  • LTC2387-18 SNR TEST

    Is there a recommended instrument for evaluating the ltc2387-18 manual dynamic parameters (fin=2kHZ, 1MHz, 5MHz)?

  • RE: ADC LTC2387-18 SNR test condition

    Use a low jitter high quality RF generator such as HP8640B. I know it is old but that is what I use. The output is fed through a multipole low distortion LC filter. (I use TTE Q70 1MHz for this.)Then you have to convert from single ended to differential…

  • Clocking LTC2387 and jitter performance.

    Hello,

    I am developing a data acquisition board with LTC2387-16. I read the datasheet and looked at the reference design provided in the ADC's webpage. 

    I know that, to achieve the desired SNR performance you have to have a really clean clock(less…

  • LTC2387 input protection

    Hello,

    I am desining a data acquisition system with LTC2387. I am worried about the ADCs' inputs.

    In the datasheet the absolute max. value for the IN+ and IN- pin are specified as VDD + 0.3V which is 5.3V. In my design the front end can swing up to…

  • LTC2387-18 clock problem

    Hi, I've attached a picture of my setup for the LTC2387-18 SAR ADC. My setup is the exact same as in this video (they show it at 2:22): 

    The only difference is my signal generator but I don't believe that is a problem because my oscilloscope seems to…

  • HMC900LP5E compatibilty with LTC2387-18

    Hi,

    As datasheet says HMC900LP5E has 2vppd output and LTC2387 has maximum 4.096V diff-input. i want to use the whole range of LTC2387. Is there any way i Can use this low pass filter in front of this ADC (ltc2387) through which the full scale range of…

  • RE: LTC2387-18 Shift Register Reset

    After power powering up or exiting power-down, the next two conversions produce invalid data. Subsequent conversions will produce valid data as long as the time between conversions meets the tcyc specification. There is no procedure necessary to reset…