• Part number is AD8494

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  • RE: AD8494ARMZ and AD8494CRMZ

    Hi isilvki,

    A and C are grades of the AD8494. The C grade is generally tested with tighter specifications compared to the A grade. In the case of the AD8494, if you look at the specification table on page 3, the C grade has better overall temperature…

  • ADI公司解决方案通报—放大器IC

    目录

    • 差分放大器采用单电源驱动1.8 V ADC
    • 电流检测放大器实现最大1μV/°C的失调漂移性能
    • 经过测试的电路设计
    • 热电偶放大器简化设计
    • 放大器IC选型指南
    • ADC驱动器提供快速压摆率
    • 同类最佳的电压反馈型放大器
    • 输出驱动器增强灵活性和性能
    • 差分放大器驱动184 MSPS SAR ADC,接受±10 V输入
    • 高分辨率、零漂移电流检测放大器
    • 适用于高精度设计的微功耗基准电压源
    • 精密放大器针对低功耗、宽电源电压范围应用而优化

  • RE: AD623 Thermocouple Amp

    Hi Brett,

    What's happening is that the output is saturated. You need to drive the REF pin to some voltage inside the operating range of the output. By the way, in case you missed it, we do have a family of In Amps for thermocouple applications (which…

  • RE: 我想问一下有没有针对s型热电偶丝的冷端补偿芯片

    据我所知ADI目前只有适合J、K、(T)三种分度号热电偶的放大器,如:AD8494/5/6/7,AD594/5/6/7。AD595的冷端补偿虽然是按K分度号热电偶校准的,但有可以用于T分度号热电偶。

  • RE: ic with on chip cold junction compensation and amplification

    Hello Divya,

    ADI thermocouple amplifiers such as AD8494 and AD8495 are designed for J and K-type thermocouples, which were chosen for their sensitivity, availability, and relatively wide linear temperature range. Some legacy parts such as the AD595 can…

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    A…
  • RE: Which is the cause of a negative offset the output of an AD620 with zero input and zero reference

    Hi Dancer,

    Your circuit looks pretty reasonable to me.  The 100k pull up resistor seems a little small, you might want to bump it up to 1 Mohm.  If this gave you some error, it would be in the positive direction, so I don't think this is the issue.…

  • AD8495能对E型和J型热电偶进行检测么?

    大家好!

           本人正在使用AD8495对热电偶温度进行检测。

           由于项目要求能够检测电路能够在K、J、E的热电偶中通用,并且考虑到目前一级代理E络盟不再继续采购AD8496(针对J型)使得AD8496价格升高,AD8494(针对J型)的2℃精度对应的测温范围不能满足项目的要求,所以想利用AD8495对K、J、E的热电偶进行检测。

           想问一下:

           (1)对于K型热电偶,AD8495的输入输出关系是Vthermocouple = (Vout - Vref - 12.5mv)/122.4。

            那么…

  • 问题: ADI最新中文资料(2011年5月)