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?
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?
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…
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…
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…
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
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…
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!!
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?
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.