• Power on time for AD8542

    I am using the AD8542 in an application powered by a 3V coin cell.  As such, the power for the AD8540 is turned on/off by a FET.  What is a good number to wait after applying power to the AD8542 before it is ready for signals?

  • AD8541 AD8542 AD8544 noise (low frequency)

    May you please provide any data of AD8541/AD8542/AD8544's voltage noise in low frequency? I mean 0.1-10 Hz uV p-p.

    I want to use it for EEG/ECG amplifier: exactly AD8542 - one op-amp for getting reference voltage (Vmid)- for a voltage follower in…

  • How to reduce effect of temperature to relaxation oscillator (using AD8542)?

    I'm using AD8542 to create relaxation oscillator with the schematic below

    But it has problem with temperature. Frequency out is drift about 4-5Hz/*C.

    Can you help me to reduce this effect?

  • Error with ADS simulation using import of AD8542 SPICE model

    I get the following error when performing a simulation in ADS 2015.01 using an imported AD8542 SPICE model.

    Error detected by hpeesofsim during netlist flattening.  'ad8542.s1' is an instance of an undefined model 'spice_vswitch'.


  • RE: AD8223B reference input voltage clamping



      I think Matt is on to something, but the AD8567 is a quad.  Look at the AD8542.  It's a cheap dual that should get

    within 20-30 mV of ground sinking 100 uA.  See figure 22 on the AD8542 datasheet.


  • input voltage


    To limit the input voltage, I put 10k ohm series register and two diodes before the input of AD8542.
    Voltage at the input pin is limited between -0.7V and +5.7V.
    Does +5.7V input voltage cause damage to AD8542 which operates with Vs=+5.0V ?
    How about…

  • RE: 签个到,送您好礼啦!(获奖名单已公布)


  • RE: TI TL034芯片ADI是否有对应的放大器可以替代?



  • The concept of Large signal voltage gain 's measurement condition ?


    I would like to know how to decide the condition of "Large signal voltage gain".

    For example, AD8542's condition is

    Vs=2.7V VCM=1.35V

        RL=100Kohm Vo=0.5 to 2.2V

    Vs=5V VCM=2.5V

        RL=100Kohm Vo=0.5 to 2.2V

    How to decide this vo condition…

  • AD8452 max duty


    In AD8542's D/S, DMAX is 97%. Would it be available both charge mode and discharge mode ? We consider DC in as +48V and DC out as +1.5V for battery. In this case the maximum duty would be 96.8% at discharge mode. How much is minimum on time at charge…