The question is about the ADA4939-1:
To which voltage level the exposed pad shall be connected?
Fig.53 in the datasheet indicates, that the pad is connected via 5 vias to a burried GND-Layer.
Nowhere else in the datasheet the recommended voltage level…
Hi ADI Enineers :
I intend to use ADA4939-1 to drive AD9484 , DC coupled , ADA4939-1 output 1V Vp-p volatge , AD9484's CML output 1.7V voltage , so ADA4939's positive output will reach to 2.2V , It seems exceed the absolute maxim VIN+ . Could you help…
Hello,
My customer want to use ADA4939-1 and AD9258-125 at ICS repeater.
They will use 120MSPS Smapling rate and IF band is 90MHz (with 10MHz Bandwidth).
Would you confirm attached schematic with ADA4939-1 and AD9258-125?
And also can this circuit…
ADA4939-1带宽很宽，但输出幅度3.3V时只有0.8-2.5V。
Schematic for the AD9258 looks good. If they seeking better linearity performance, they may consider using another amplifier since ADA4937-1 linearity performance falls off between 120-180 MHz. Perhaps the ADA4939 would provide better linearity…
ADA4938 or ADA4939 in the band 0=500mHz C=some Pf
您好， 您可以考虑以下芯片：
ADA4817,ADA4891,AD8045,AD8011,ADA4350,ADA4932,AD8099,ADA4930,
ADA4927,AD8009,ADA4939,AD829,ADA4940,AD8065,AD8007,AD8001,ADA4851
Hi Bart,
Can you send me a schematics of how you plan to connect the ADA4817 with a series resistor between each output so that it looks like a ADA4939?
Can you send me an email at chilann.chan@analog.com?
It will be much easier to discuss there…
Hi Gideon,
I moved this thread to the "CrossCore Embedded Studio and Add-ins" forum as it appears a tools related issue.
I suspect that one of the automatic file attributes is being replaced by a macro define in the compiler generated assembly…
I want to build a composite amplifier using the Figure 77 of the datasheet ADA4870-1. It says that the voltage offset is less than 500 uV. I simulate this circuit using LTSpice, when driving ada4637-1 with 0V and monitor the output of ADA4870-1, it is…