• ADN2830:  CW laser diode power control

    I'd like to use the ADN2830 for a CW laser diode power control. Laser diode and
    photodiode are connected with common cathode. I'd like to have the photodiode
    current monitor on pin IMPDMON so I'll connect the photodiode anode to the…
  • Frequency of input signal ADN2830

    Dear engineer

    At present, we are looking for a laser driver that can modulate the laser diode in the way of 100MHz sine wave + DC bias. At the same time, the chip needs to have APC function. From the data manual of adn2830, we know that adn2830 can modulate…

  • ADN2830 huge interference signal after power up

    Good Day,

           We've used ADN2830  with our CW laser control project. We parallel three ADN2830, use negtive power supply just  refer to AN655.

    Now we can drive the laser sucessfully, however, hugh interference signal be tested with ADN2830 each PIN,…

  • ADN2830 in constant current mode

    Hi, I am trying to make a constant current driver for a laser source using the ADN2830 IC. In the datasheet it is mentioned that in order to run the IC in constant current mode, we need to directly connect the PSET pin with the IBMON pins instead of connecting…

  • Inquiry on ADN2830 configured with current multipier

    For 350 mA extra IBIAS (550 mA total) from  AMP1, I use  SSM2211 AMP, according to the ADN2830's datasheet, but I don't know how to choose  right resistance R1 and R2. Are they kΩ or Ω ?

    Thanks.

  • adn2830偏置电流限流

    各位好:

         我在使用ADN2830这款芯片做激光器的APC控制,使用的激光器最大偏置电流100ma而adn2830最大偏置电流200ma。有没有什么方法可以将偏置电流限流在100ma?另外有谁能够提供芯片内部的电路结构图。

         谢谢!

  • ADN2830的PD监测电流问题

    工程师:

    您好!

    我们想用ADN2830并联的方式进行50mw蝶形封装激光器的连续光输出驱动,但是我们看ADN2830的资料,发现它的第四管脚 PSET的PD监测电流只有50-1200uA,但是我们通常要驱动的1550nm激光器其内置PD输出的电流都在1500-2000uA以上,超过了ADN2830的PSET监控范围,这个问题一般怎么解决?

  • ADN2830参考电路的选择

    工程师:

    您好

    我是一名合肥工业大学的学生,想请问您一个问题:使用芯片ADN2830做激光器的APC控制,根据其数据手册,有几种参考电路模式,用作激光器的APC控制的参考电路是下面三种模式的哪种?

  • ADN2830在温度的影响下控制不稳定

    工程师您好;我用ADN2830驱动一个激光器恒功率输出,可是随着温度的变化导致ADN2830控制的激光器输出不稳定,是什么原因呢

  • 使用SSM211放大ADN2830输出电流大小时的运放电阻阻值设置问题

          我这需要做一个激光器的功率控制电路,需要将200mA的ADN2830输出电流放大到550ma,根据数据手册,选用SSM211运放将电流放大,但是在运放电路中的电阻值的设置上存在问题。典型电路中R1、R2的值应该如何选取,是kΩ级别还是Ω级别?