• RE: ADI运算放大器资料大合集(持续更新中ing)

    资料4:运算放大器共模抑制比(CMRR)

  • AD590 wide operating voltage?

    Hello friends

    Did anybody tried to operate AD590 (temperature sensor) to operate on 28V as it is mentioned in the data sheet. I have seen all the application with 5V but i want to operate it with 28V, please let me know that whether the result will be…

  • RE: short pulse amplifier

    what is Y1 in your schematic. I do not follow exactly what you are doing but you can look at figure 36 of OP77 datasheet hwich gives you detection and amplification. You may need to do adjustment for your needs.

    http://www.analog.com/en/all-operational…

  • RE: ad8138驱动AD7357,AD7357基准输出变为2.9V?

    还是上原理图吧,你用参考设计,是哪个图,说明一下

    若是数据手册中的Figure 21,AD8138和基准没有关系吧,经过OP177隔离了

  • 恒流源电路问题,不同运放效果还不一样,不知道怎么回事!

    最开始恒流源电路用的是op177,这个倒是很稳,但是这个不是个轨到轨输出的。
    然后换了个轨到轨的AD820,板子上一共16路恒流源3V基准(图里3k实际是)1.2k电阻,正常电流应该是2.5mA,但是实际输出的啥值都有2.444,2.511······
    又换成AD8638,正常这个应该更好,失调电压更低。但是实际才2.1mA输出,郁闷····
    换回op177…

  • Replacing AD624 with AD8295

    Hi all,

    We are using AD624 Instrumentation Amplifier for our signal Conditioning Application for Strain gauge based sensor like Force and Torque Sensors.  Here we get Voltage in mV and we are using AD624 as IA and then a second order Butter worth filter…

  • RE: OP4177 opamp is not working as voltage limiter.

    FormerMember
    FormerMember

    Ruchi,

      AR4A, etc. are connected in such a way where under certain conditions, the diode is reverse biased and there is no feedback.  A lot of op amps don't like this.  The OP4177 is a precision op amp with protection diodes and resistors between the…

  • RE: 微伏电压信号放大电路

    细看了下OP177的GBW,600KHz,若G=200,BW就只剩3KHz了,处理0.5KHz信号余量不大的。

    OP27这款经典OP07接班人,GBW有8MHz。

    建议用官网推荐的替代型号ADA4004,ADAxxxx是ADI后续主推型号。

    ADA4004-1 数据手册和产品信息 | 亚德诺半导体

  • Choosing a good opamp for a mic preamp

    I'm looking for recommendations for a good opeamp to use in a simple microphone preamp circuit for ADI's MEMS microphones. The noise floor of these microphones is at -100 dBV (10 uV), A-weighted, with a 20 kHz bandwidth. The typical use of this preamp…

  • RE: OP4177 Power Voltage Supply

    FormerMember
    FormerMember

    Fons,

    Sure.  About 1970, with the 741 op amp, etc. analog signal paths were designed with +/-15V.

    PMI introduced the OP07 in 1974.  Since that time, we have done several more generations of the

    OP07 -> OP77 -> OP177 -> OP1177.  The OP2177 is…