• AD8028 Output Voltage Swing

    Hi,

    My customers are considering AD8028.

    What is the output voltage swing when using the AD8028 under the following conditions?

    <Condition>
    Vs = 5V
    RL = 100 Ω

    Since the result of RL = 1kΩ for the data sheet was not obtained,
    I want to know…

  • AD8028 power down

    Hello,

    In power down mode, what is the state of the output?

    I want to know when I put the select pin to 0V, the output will be in tristate or 0V?

    Thank you

    Man Long

  • AD8028 stability and DC errors vs Vicm

    Hello,

    1 - Stability :

    After a stabilty analysis of AD8028 in follower mode, with no load, it appears that AD8028 is stable (phase margin >46°) if the feedback resistor is close to 0 ohms (<100ohms).

    In my design, I first wished a feedback resistor…

  • RE: AD8041S Protection Diodes

    Same question for AD8028 while current of 9.5mA maximum flowes from the input through the protection diode. Thank's

  • RE: Low Vos version of AD8647??

    Hi,

    Thank you for reply and suggestion.

    The ADA4897-2 is already evaluated but there was signal leakage from input to output when power-down was enabled. So AD8028 might be good.

    Regards, Satoshi

  • RE: Replacement for ada4851-4

    Hi,

    The AD8028 is our widest BW true RRIO dual op amp we have today. If you could provide a little more supply voltage the ADA4891-4 might be of interest to you.

    Regards

    Jack

  • RE: Is it possible to precision rectify a 1MHz signal?

    It is always nice to be able to answer one's own questions, since it usually means, that the effort to find out has been succesful.
    I tried to build the circuit mentioned in this publication:

    http://www.analog.com/library/analogDialogue/archives/44…

  • 线性运放正常供电,无输入信号时,输入引脚却检测到直流电平?

    不止一款芯片出现过该情况,比如8脚的AD8028是双运放,用其中一个做个简单的跟随器,没有信号给入同向输入端时,竟也能在同向输入端检测到有直流电平近2V存在。后来,尝试仅给芯片供电,其他引脚不做任何处理和连接,仍有直流电平存在,求解释!!!

    我尝试其他常用精密运放,比如opa228,也有该情况出现

  • RE: High-precision digitally controlled amplifier

    Hi Sparkles!,

    In the configuration using in amp and digipot, the digipot will introduce low pass filter due its resistor and switches parasitic capacitance. It will low pass the signal before it goes through the in amp output. The larger the end to end…

  • RE: powering AD8066

    Really your best bet is changing amplifiers to something like the AD8397 (less gain-bandwidth product) or AD8030 (closer) or even the AD8022 that at lease works at 4.5V. The AD8066 will probably work at 4.5 but you will have no guarantee of that. If this…