• AD8628: Signal sourcing

    Q 

    Reading the 8628 data sheet I don't see the simplified block diagram of the
    amplifier. The question is the following: when looking to the signal source
    trough AD8628 is that mean that 8628 connected to the signal source only half
    …

  • AD8628 minimum stable gain

    Q 

    The datasheet does not mention the value of the minimum gain. What minimum gain
    is possible, where AD8628 stays stable?

     

    A 

    AD8628 is unity gain stable. This means G = 1 or G = 0dB.

    Most of our amplifiers are unity gain stable, unless…

  • AD8628 Spike bias current

    Auto zero amplifiers,like opa2188 ,have spike bias current which is very huge.The datasheet of AD8628  did not mention spike bias current,does AD8628 have very low spike bias current or it does not have any spike bias current?

  • AD8628 as voltage follower

    I am using an AD8628 as a voltage follower to buffer a d.c. voltage and drive a load of 100nF and 2.2k parallel resistor. 

    As this is quite a large capacitive load I added a series resistor at the op-amp output with the negative feedback taken after the…

  • AD8628做电压跟随

    用AD8628做电压跟随，发现+-输入端有50mv的电压差，不知道为什么？该怎么消除？

  • AD8628 vs ADA4528-1 Output Current Capability

    Hi,

    Looking at Figure 11 (Ouput Voltage to Supply Rail vs. Load Current) of the AD8628 datasheet it can be seen that you can get up to 10 mA at the expense of about 400mV drop from the supply rail.

    From Figure 15 of ADA4528-1 it seems that you can get…

  • AD8628/29/30, thermopile application, power supply decoupling?

    We are attempting to use an AD8630 to amplify the signals from four thermopiles.  This amplifier was recommended by Dexter Research, a thermopile manufacturer.  One thermopile is equipped with broad-band optical window which admits a lot of light, and the…

  • 你好，有个AD8628的问题想问一下

    你好，我看AD8628的文档说AD8628是单电源供电，但是在AD5512A的文档里，说AD5512A的双极性输出操作是，给出的例子里用的就是AD8628，但是图里面是接的确实双电源，如下图

    我使用的AD5512A的双极性输出，那应该是5v单电源，还是双电源+-5V？谢谢

  • Bare Eval Board with Guard trace to test SOT-23-5 package OpAmp

    Hi, I am an ADI DFAE. Currently, one of my customers faced some issues with the Op-Amp AD8628 (SOT-23).

    Customer asked whether there is a bare evaluation board for the SOT-23 packaged op-amp with the guard trace feature.

    Since customer using AD8628 as…

  • RE: AD8226 Application Suitability - MEMS Accelerometer

    Hi Harry,

    Thank your for your reply. The AD8628 was in fact my second option for the filter. I only went to the ADA4528-1 because it was cheaper than the AD8628 in 3 of 4 distributors. Also, although on paper every calculation seemed ok, I got weir results…