• ADA4522-4 apparent crosstalk and short-circuit input

    Hello, 

    I'm using an ADA4522-4 as a buffer and amplifier for a simple current sense circuit and I observe a strange behavior where one inputs starts to sink a lot of current when another amplifier saturates. 

    My circuit consists of a 330kΩ sense resistor…

  • ADA4522-4 CMRR, PSRR

    Hi

    I'm a DFAE in Japan. Our customer would start evaluation of ADA4522-4 and give us a question. According to D/S of ADA4522, CMRR and PSRR in Table 2 and Table 3 are higher than Figure 30 (CMRR), Figure 33(PSRR).  We don't understand the reason. Could…

  • RE: ADA4522-4 seems not work well

    Hi the ADA4522-4 has an input range of 0 to 3.5V on a 5 volt supply, which explains what you are seeing for the LTspice simulation.  Even if you keep your input range between 0 and 3.5V, peaking of the filter stages may make the output voltage between…

  • ADA4522-4 in a severe EMC environment

    I have an EMC client using chains of ADA4522 op amps. The input sweeps from 20 KHz to 300 KHz. Sometimes the outputs become slew rate limited. I am concerned the ADA4522 is susceptible to large signal triangle waveform harmonic products causing aliasing…

  • ADA4522-1/ADA4522-2 huge offset voltage

    Hello, 

    I want to use 1 ADA4522-2 or 2 ADA4522-1 as unity gain buffer for 30V and 48V. To test the ADA4522-1 I created a minimal setup (see attached schematic). While I have 25.1491V on +IN, I get 25.1848V on -IN. That means an offset of 35.7mV. In the datasheet…

  • Instability of the output signal ADA4522-2

    Hi! I'm using the ADA4522-2 as a differential op-amp. According to the tests and simulation results in LTspice, the output differential voltage is approximately 24V. If you use a different operational amplifier, for example, OP2177, this problem disappears…

  • ADA4522

    Hello,

    I want to use the ADA4522 as follows:

    - Positive power supply connected to ground.

    - Negative power supply connected to -50V.

    Will it will work?

    Giora

  • RE: ADA4522 Drift

    Hello Emman,

    For one of my project (designing a low drift voltage source), I have the same question as Ben.

    I know that this post is pretty old, however, have you published the results of the characterization of the long term drift of the ADA4522 ? Would…

  • ADA4522 internal oscillator

    Hello

    My customers are suffering from 124MHz and 63MHz unwanted radiation appearing on the board.
    My customers are exhaustively checking the device's internal oscillator on the board.
    If you have any material that reassures my customers about the ADA4522…
  • ADA4522发热

    我们目前使用的电路均为跟随和负反馈,电路如下:

    给运放供电正负15伏,运放芯片发热异常,几秒之后烧毁;

    连续试了10颗左右的4522,均是如此;换成LM224运放就可以正常工作,请帮忙分析下谢谢!