• ADR4525 可以这样产生-2.5 V电压参考吗?

    ADR4525可以这样用来产生-2.5 v的电压基准吗?


  • RE: EVAL-AD5766 Issues


    Kindly let us know if the new chips resolves the issue.

    Can you also quickly check if the reference (ADR4525) has a correct output of 2.5V +/-1%?

    Best regards,


  • Do I need to put a buffer on the ADR4525 output?


    I will use ADR4525 as a reference source to an ADC, and would like to know whether I need to put an output buffer or not. What should I consider?

    Thanks in advance.


  • RE: Transient behavior on first samples of AD7980

    Hi Percy,

    From the AD7980 data sheet:

    When REF is driven by a very low impedance source, for example, a reference buffer using the AD8031 or the ADA4805-1, a ceramic chip capacitor is appropriate for optimum performance. If an unbuffered reference…

  • RE: ada4927-1 adding dc offset onto inverting input to maximize adc range



    Are you talking about the inverting input of fig 48 of the rev A data sheet?

    If so, the circuit simply sees two signals and takes the difference.  It doesn't

    know that one is a DC offset.

    However, I would NOT use an LDO for the offset.

  • RE: Is there a detailed Block diagram for the ADR130 reference voltage?

    Hi Fausto,

    Currently under ADR130 data sheet, I did not find block diagram but there is always an option to create one. Can you please provide what specific details you are looking for within block diagram?

    Below is an example of ADR4525 block diagram…

  • Differential Amplifier for 32-bit ADC

    I am working on an VirtualBench Projects that uses the AD7177-2 32-bit ADC.

    Does anyone know any good amplifiers that wil work well With the 32-bit ADC?

    I am looking at these parts.

    External gain: AD8253

    5.00v ref: ADR4550

    2.50v ref: ADR4525


  • RE: Use of TL431 for voltage reference of AD7683


    I would not even consider the TL431 with a 16 bit ADC;  you are just throwing money away.

    The TL431 is a commodity reference, with 50 ppm/C tempco.  So after your temperature

    changes by 10 degrees, you have less than a 14 bit system.   There is a noise…

  • RE: ADuC7061 problem with erasing FLASH and ADC data

    Hi please find bellow drowings:


    Digital side of power supply

    Analog side of power supply

    Power line isolation

    As you can see only +2.5A (power supply for analog circuits) doesen't have  additional decoupler. ADR4525 has…

  • RE: AD680 adding tow capacitor

    Hi, Osamu.

    According to the applications engineer of AD680, ADI does not guarantee the performance of AD680 when a capacitor is connected between the TEMP pin and ground because AD680 was not designed for that purpose.

    As alternative, you may try the…