• ADM7155 in parallel

    Hi 

    I want to connect multiple ADM7155 in parallel to further reduce output noise. Does anyone share some insight if that is possible?

    My plan is connect REF, REF_SENSE and VOUT of multiple 7155 together. 

  • Problems using the ADM7155

    Hello,

    Using ADM7155 regulator I can't get voltage which I setup according to the datasheet.

    Why ?

    Thanks.

  • ADM7155. About minimum Vin.

    Hello.

    Sorry for my English. It is not my native language.

     

    I want to use ADM7155-04 with Vin = 3.2 - 4.2 V; Icc (max) = 100mA.

    Vout = 3.3 V

     

    In the datasheet on the chart I found the information about Vdropout = 60mV ( Vout=3.3V and Icc =100mA…

  • ADP7159..ADM7155 REF_SENSE pin

    Is ADP7159 (or ADP7157, .. ADM715*) REF_SENSE pin driven by external DAC acceptable?

    I wanto control the voltage with a SPI/DAC.

    like https://ez.analog.com/power/f/q-a/100035/lt3090-output-voltage-controlled-by-dac

  • Adjust Vout of ADM7155 during operation

    Hi, we use the ADM7155-04 in our desing as a low noise linear regulator. We have an input Voltage of 5V and need to generate between 1.8 and 3.2 V. I did built up the circuit exactely as it is mentioned in the datasheet. To adjust the voltage I wanted…

  • ADM7154, ADM7155: Is the soft start time programmable?

    ADM7154, ADM7155: Is the soft start time programmable?

     

    Yes. ADM7154/ADM7155 use internal soft start to limit the inrush current. The
    rise time in seconds of output voltage (from 10% to 90%) is approximately
    0.0012×Cbyp (Cbyp in uF)
  • ADM7154, ADM7155: What is the recommended headroom voltage?

    ADM7154, ADM7155: What is the recommended headroom voltage?

     

    The recommended headroom voltage (headroom = VIN – VOUT) will depend on the
    requirements in each individual application. These LDOs are typically operated
    at 500mV to 1V  of…
  • ADM7150/ADM7155 - Is this a good IC for powering a DAC?

    Hello.

    First of all - sorry for my grammar, English is not my native language.

    I'm in the middle of component choosing for my new DAC project and I need help with voltage regulators.

    My project will have 3 separate voltage sections - one for digital…

  • ADM7154, ADM7155: Are there any other design considerations for low noise?

    ADM7154, ADM7155: Are there any other design considerations for low noise?

     

    The ADM7154/ADM7155 architecture means that the output noise does not scale
    with voltage for the fixed output voltage models. A simple RC network can be
    added…
  • 关于ADM7155和ADP151噪声比较的问题

    两款LDO都标明为极低噪声,ADM7155的Datasheet里给出的10Hz~100KHz的积分噪声为1.6uV rms,而ADP151给出的10Hz~100KHz的积分噪声是9uV rms。 也即ADM7155的噪声性能应该好于ADP151,但是同时ADM7155给出的噪声功率谱却比ADP151差很多:ADP151的噪声功率谱密度始终低于1nV/rHz,但是ADM7155频率到10KHz以上后才会到1.5nV/rHz,如下面两图:

    第一幅是ADM7155的噪声功率谱,第二幅是ADP151的噪声功率谱…