• ADA4841 Exposed Pad

    The datasheet for the ADA4841 says that the exposed paddle of the LFCSP package should be connected to ground (Figure 3 on first page).  In a split supply design is that Ground (0V) or is it the negative supply?

  • ADA4841 spice model

    I am trying to use ADA4841 spice model in LTspice and also in Spectre. In both cases the results are corrupt. The output node shows -0.6V while VEE is at GND. I amk suspecting the model is corrupt

    Does anyone have the previous release of this library…

  • ADA4841-2YRZ Op Amp

    I am laying out a board based on the ADAU1452.This is the eval board for the DSP. I cant find a spice model for the ADA4841-2YRZ. This is my first time laying out a board. I have the dash 1 part in my data base. But can't seem to get the model for the…

  • ADA4841 Input voltage headroom

    Hi there,

    I'm building a precision voltage generator and I'm using a DAC to drive the ADA4841 which is in a voltage follower configuration.

    Previously it was the ADA4807, but it had some issues like: powering the unit from the USB and batteries…

  • ADA4841 input current range

    HEllo,

    I am planning to use the ADA4841 to drive the AD7980 and am having trouble finding the input current range of this amp.  Is it 10nA to 10uA?

    Thank you,

    Frank

  • ADA4841: Voltage reference driver VS input common-mode range

    I have asked a related question here in ADC section: Unstable, voltage reference of AD7682/AD7689

    But I think it may be more appropriate to put the question here.

    I am using ADA4841 to buffer a voltage reference. The ADA4841 is powered with +5V and…

  • 發現ADA4841-2新的問題!!!!

    小弟起初在ADA4841-2的輸入端+IN跟-IN沒有接任何東西,當輸入端沒接電壓時,量到的是4.3V左右,

    之後在輸入端+IN跟-IN兩點並上10K電阻,當輸入端沒接電壓時,量到的是則變成0.03V左右,但它仍然沒辦法達到軌到軌,

    參考電壓在5V情況下,輸出電壓仍然只有4.3V。

    AD的專家們,麻煩幫忙一下,這問題困擾好久了,而且在datasheet上好像沒有說要在輸入端+IN跟-IN兩點並上電阻,

    該怎麼處理比較好呢??,謝謝大家的幫忙!!

  • ADA4841输入阻抗问题咨询

    我采用ADA4841运算放大器作为mos管驱动电路做了一个恒流源电路(见附件,J5和J6分别为未知电阻),但是在实际的使用时发现当R18的阻值过大时,例如1.1MΩ时,运放的输出端为0.

    当减小R18的阻值时,例如50KΩ时,运放输出正常。我的理解是我选择的运放输入阻抗偏小,不知我这样理解是否正确,另外贵公司还有其他其他替代型号可以解决这一问题?如果我理解错误,那么是什么原因造成的,能否告知?

  • ADA4841最大供电电压是多少?

    ADA4841最大供电电压是±12V,还是|+Vs|+|-Vs|=12V? 有类似性能但供电电压更宽的型号吗?

  • RE: How would you explain that the 3rd harmonic is so high with the ADA4841 compared to the AD8065?

    The slew rate of the op-amp affects the third harmonics amplitude. So if you look at the AD8065, the slew rate is 180V/us whereas the ADA4841-1 has a slew rate of 12V/us. This difference in Slew Rate is more than likely causing the problem.