• AD420: Output voltage range

    the output voltage range of the ad420 is only 4,90V and not 5V!!
    What?s wrong??

     

    The AD420 is primarily used as a precision current output DAC in 4-20mA loop
    systems delivering a programmed current into a grounded load. In voltage output…
  • RE: AD420 Drift in output

    Hi Micheal

    We have isolated the problem. On the output of the AD420 (the 4-20mA Iout line pin 18) we had a transient voltage suppressor which when remove led to the drift being eliminated. For some reason the transorb was causing the analog drift on…

  • RE: AD420 issues at 12V

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
  • RE: ad420 DC level

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
  • AD420: NC pin

    Hello,

    I have a question about the 22 pin (NC pin) of AD420.

    In an old specification, I think that 22 pin was a capacitor connection terminal.

    However, it is NC pin now.

    Because my circuit was designed in old time, the capacitor (3300pF) is connected…

  • AD420 Giving 9.93V as output

    By mistake, I have provided -12V instead of +12V to the AD420.

    I have measure the output, it is giving 9.93V on Pin 17.

    Have I lost the IC? Any solution for that.

    How can I test or check, whether it will work or not?

  • AD420 Output Voltage Range +/- 2.5V

    I have prepared circuit using LM358N op-amp for output voltage range -2.5V to +2.5V, as per attached file. 

    But it is not giving proper output. What may be the issue in it?

  • AD5420 gain and offset compensation

    Hi all,

    I use an AD5420 to produce a precise 0-20mA output current.

    Is it preferrable to compensate the offset and gain errors by firmware or there is some internal compensation circuitry in the AD5420 to do this ?

    In the AD420 the compensation can…

  • Offset Adjustment and Gain Adjustment

    Offset Adjustment and Gain Adjustment

     

    The gain adjustment range is fairly easy to calculate given other
    information on the data sheet, but the offset adjsut is more difficult
    without the internal schematics.

    Gain adjust: The 5k…
  • AD420: Maximum output current and maximum current absorption

    1) Which is the maximum output current available in voltage mode (0-5V olutput)
    ?
    2) Which is the maximum current absorption from power supply when I put Vcc =
    +15V

     

    1)The voltage output should be loaded by a high impedance only…