• RE: AD623

    This question has been closed by the EZ team and is assumed answered.

  • 最爱ADI放大器之AD623

    最爱ADI放大器之AD623 by garytavish

           去年曾做过一个光电传感器相关的设计，其中模电部分需要将光电二极管的小信号与调零电位器电压相减后再放大50到100倍交由ADC转换，出于成本和需求考虑，ADC直接使用ATMEGA系列单片机自带的10bit ADC，初版设计的时候采用的是LM358运放组成减法器，后来发现由于电阻温飘与放大器偏移等问题导致在不同环境下输出偏移较大，不利于数字系统分析判断状态。而用LM324等运放搭建仪表放大电路也存在电阻匹配以及温飘问题。后来在图书馆查询资料时候看到了一本ADI的运放手册…

  • RE: 关于AD623的电路

    This question has been closed by the EZ team and is assumed answered.

  • AD623 with excessive offset voltage

    I am using the AD623 with a thermocouple as per the figure in the datasheet except that the reference pin is grounded (I'm not interested in measuring cold temperatures) . 

    1) If I short out the + and - inputs,  the output reads about 25mV.  Is this…

  • ad623 not linear?

    Hi,

    I'm currently using an ad623 to amplify a signal thats usually between 0 and 500mV.

    The Chip is supplied with 4.5V DC.

    REF is connected to ground.

    Between the Rg Pins is is a 10k Resistor 5% Resisitor this sshould result in a Amplification…

    • amplification_over_inputrange.pdf

  • RE: AD623 problem

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    …

  • RE: AD623 Issues

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  • RE: questions about AD623

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  • RE: AD623 gain problem

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  • RE: AD623 - Weird output

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