• 请问怎么测定AD8227的共模抑制比?

    用到AD8227这款芯片,感觉共模抑制比有点低,请问怎么测定这个参数,我试过:将所有电极连在一起,相对  于大地驱动这些电极。同样,共模抑制的定义是20×log   (VOUT/VIN),其中,VIN为共模驱动信号,VOUT为特定目标  导联得到的信号,这种方法测试的,信号源为信号发生器,通过示波器观测VOUT,结果却是零输出,求指教哪里错了?

  • AD8227

    Hello:

    Anyone knows how can I get a graphic for "Input Common-Mode Voltage vs. Output Voltage" for the AD8227 with  12Vdc single supply, Gain >= 10. In datasheet only shows at 5Vdc.

    I appreciate your help. Greetings!

  • AD8237 substitute?

    I've been using AD8237 INA for a few designs. This amplifier has such good performance, probably the best on market regarding gain error and accuracy. But for the last year it had frequent stocking shortage. Now it's unavailable everywhere with very long…

  • AD620 input impedance when supplies are off

    What is the input impedance (both differential and common mode) of the AD620AN
    when the supply rails collapse (i.e. the power supply to the amplifier is
    down/switched off and all the rails are at the same voltage)? Datasheet doesn't
  • RE: the disturb of AD8237

    The LTC6800 is a similar inamp with similar precision and pinout. The pinout is a little different though. The switching technique is not the same so it MAY act better in your setup.

    More traditional low-supply voltage in-amp with no switching/digital…

  • RE: Thermocouple Design

    Hi liambarness,

    What is the reason you chose a thermocouple? Your temperature range is within range for a silicon temperature sensor, and you would get better accuracy and sensitivity than with a thermocouple.

    Do you need the 0 to 10V analog output…

  • RE: 签个到,送您好礼啦!(获奖名单已公布)

    天津 空港经济区 测量仪表 关注AD8227

  • RE: 寻找一款输入共模电压可以大于供电电压的仪表放大器

    AD8227的共模电压在正常放大时,是不可以超过供电范围的。但是可以承受一定的过压:In addition to its wide operating range, the AD8227 can handle voltages beyond the rails. For example, with a ±5 V supply, the part is guaranteed to withstand ±35 V at the input with no damage.

  • RE: AD595 without ice compensation?

    Hi sta12@,

    This is an interesting question. +C and -C are the outputs of a temperature measurement ΔVbe cell (and the datasheet warns against grounding these or connecting to a low-impedance). +T and -T are an attenuated version of +C and -C, and +T…

  • RE: PSPICE Simulation Model for AD8223?

    Hi rdiya,

    Unfortunately, we don't have a model for this part. If you are interested in instrumentation amplifiers with a G=5 I recommend you take a look at AD8227, plus we do have a SPICE model for it.

    Regards,

    Gustavo