Hi,
I am using AD8022 as non-inverting unity gain buffer in my circuits. However when I powered the circuit I surprised to find that the IC was running in warm condition.Is this normal? or the device is not unity gain stable. Please advice.
Regards
…Hi
In the below configuration AD8022 output swings like in the waveform.
Can anyone suggest what would be the problem?
I've designed a 5th order low pass antialiasing filter using the filter wizard. The design I obtained is based on the AD8022 dual opamp. I've constructed the circuit and the result I got today are alright.
I also need to model the circuit using…
Hi,
I have following questions on AD8022.
a) Datasheet shows, INPUT CHARACTERISTICS, Input Resistance (Differential) is 20kΩ, as Typical.
Could you please confirm whether this value 20k is really correct or not ?
It may sound strangely, but normally…
Hi, Steven.
I attached the AD8022 and ADA4857 SPICE models. These were recently created and tested. The models available in the web were not yet updated thus the results were not very good. The attached models are better so use them instead.
Regards…
HI Selva,
If you are using the AD8022 as an inverting amplifier as shown below, I don't think you gonna have a problem with the absolute maximum differential voltage. The differential voltage on the abs max rating refers to the difference of voltage…
谢谢您的回复。
输入信号来自运放AD8022，信号特性……不知该怎么描述，是OFDM信号。频率<100K,幅度在200mV-2V之间浮动，直流偏置也是浮动的。希望输出信号是差分信号，不失真。
在实现的过程中遇到的问题如前所述
附件为补充，也许可以更详细的理解问题。
Hi,
Please see pages 13-14 to see how to drive the AD7357 differential inputs using the AD8138 or AD8022. Please also check our reference circuit for this: http://www.analog.com/en/circuits-from-the-lab/CN0061/vc.html. You just need to add a capacitor…
