• RE: Instability of the output signal ADA4522-2

    Of course. To simulate a schematic with OP2177, you just need to replace the ADA4522-2.

    LTspice - ADA4522-2

    Best regards,

    Vladimir

  • 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…

  • RE: About ADA4522-2 scope of input signal voltage

    Hi seekyong,

    The ADA4522-2 input voltage range does not extend all the way up to V+ (5V). With +/-5V supplies, the inputs can swing from -5V to +3.5V only (1.5V below V+).

    If you want to swing all the way up to V+, you'd have to select a different device…

  • ADA4522-4 wrong output voltage

    Hi,

    I am using the Channel D of  ADA4522-4 as a voltage buffer.

    For testing, I short the inverting input of channel D to the output of channel D. I apply -10V to the non-inverting input of channel D.

    My positive supply voltage is at 13.5V and negative…

  • 关于ADA4522-2的外接电阻

    大家好！

    目前本人正采用AD8676用于积分电路。考虑到ADA4522-2的失调电压等指标更优，考虑换用该芯片。粗读ADA4522-2的datasheet之后，想请教一个问题：

    ADA4522-2的输入电阻标注为30k（差模）、100G（共模）。

    那么，对于反相积分电路的积分电阻R1（目前使用AD8676时取R1=5.1K），其阻值是否需要满足某些要求呢？例如小于XXX，或者大于YYY。

    谢谢！

  • ADA4522无法放大小于0.1mv的信号么？

    如题，ADA4522-2无法放大小于0.1mv的信号么？这是为什么啊

  • OpAmp (ADA4522) heating issue

    I am using this ADA4522 as voltage follower which is supplied with +35V and -5V. When input signal with below specs is given the OpAmp is heating
    Input signal specs:
    20Vpk, 5us rise/fall time and 2us high/low time.

  • ADA4522 dual supply voltage follower issues

    using a ADA4522-2 .

    +/-12VDC supplies

    sweeping system to test 3dB BW/

    signal into the ADA4522 (each config) ~ 1Vpp at 255KHz (see the blue in pic).

    output of invertcxonfig looks good.

    output of volt follower looks 'oscillatory/slewed.

    not sure why…

  • ADA4522-2上电时序

    新选了ADA4522-2作为电压采集电路的前置缓冲器，输入Vin上增加了1Mohm的下拉电阻以保证输入悬空时运放输出为低。运放供电为±13V。

    测试时发现输入悬空时运放输出为12V左右，略低于正电源电压。此时接入输入后，运放输出正常。断开输入电源后，运放输出为0V左右，正常。即异常只出现在输入悬空状态时的上电后。

    1、保持电路不变，更换之前使用的运放，没有异常，输入悬空状态下上电后运放输出为0V左右。

    2、测量±13V电源的上电时序，发现-13V上电略早于+13V几十ms，调整-13V上电到略晚于…

  • RE: ADA4522 work for ref voltage

    Hi Kent,

    It seems that in your circuit, you're using way too high input resistance for the ADA4522-2. According to page 30 of the datasheet, when the ADA4522-2 is configured in a unity gain configuration with a large source resistance, the amplifier output…