• ADA4899-1: FAQ

    FAQ

  • Noise model of ADA4899-1 for LTspice

    Q 

    When doing a noise analysis in Spice (LTSpice) using the model provided for the
    ADA-4899, the noise output is orders of magnitude larger than specified in the
    datasheet.

    At first glance it seems like a noise current of ~12 nA/√Hz is flowing out…

  • Dual supply ADA4899-1

    Hi,

    I am using the ADA4899-1YCPZ. 

    I would like to know if it can be used with an asymmetric power supply   +7/-2.5V.

    In such case, should the EP  be connected to Gnd [0V] or to VEE [-2.5V]?

    Best Regards

    Alfonso

  • ADA4899-1的放大和单位增益电路

    请问使用ADA4899-1做单位增益和放大电路（10倍）时候，最适合的电路是怎么设置的，能分别提供一下电路吗？

  • ADA4899-1 Disable Pin effect on Noise performance

    Hello,

    I am using ADA4899 as fully differential ADC driver with gain = 5.

    I am simulating this circuit in LTSpice. When I leave the "disable pin floating", i see a total noise of my circuit as 89.057nV/rtHz. When I connect the "disable pin to the positive…

  • Could the power supply of ADA4899-1 be ±2.5V?

    Could the power supply of ADA4899-1 be ±2.5V? Thanks!

  • About the two -Vs pin of SOIC version ADA4899

    The SOIC version of ADA4899-1 has two '-Vs' pins, I wonder if I can only use pin 5 and leave pin just floating, will this degrade the performance of it?

    Thanks.

  • RE: PCB layout of ADA4899-1

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    …

  • RE: Problem of PCB layout  of  ADA4899-1

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    …

  • ADA4899-1输入保护问题

    读ADA4899-1的datasheet，输入端有二极管保护，而Absolute maximum ratings里面，说输入差分电压是±1.2V，这种情况还需要在外部加限压吗？应该是靠内部二极管保护就可以了吧？输入脉冲电压，幅度随机，一般在1V以内，少数可能达到3V以上。±3.3V供电。偶尔出现运放失效的情况。