Maybe I've missed it but what is the output impedance of a ADA4930-2.
Can you provide the junction-to-case thermal resistance of ADA4930-2?
Hello, as far as I know there is no ibis model available for ADA4930-2.
Is there an alternative (model of a similar component) I could use?
We have an intermittend problem while using the ADA4930-2 in a set of drivers. Intermittendly we pick up a 65 MHz oscillation on one of the 2 channels, which seems to disappear when cycling the devices power.
The amplifier set consists of…
Hello ADA4930-2 experts
Please can you advise, either to connect or not to connect Multiple ADA4930-2 Vocm's together for the following scenarios.
Require to use/connect 4 x ADA4930-2 (effectively having 8x Vocm) into 1x AD9681 (with only 2 Vcm…
I would suggest that you use the newer ADA4930-2 which is a dual device. Set Vocm to 1.2V so that the ADA4930 has the correct output bias level. You can use the DiffAmpCalc tool and the ADA4930 PSPICE tool to get the gain and level shifting set up correctly…
Hi I am using the ADA4930-2 in one of our design.
For some reason we want to stick to ADA4930-2 though we need single OPAMP for our application. So Is this fine to keep the unused OPAMP ports open? I mean IN+,IN-,FB2+,FB2-,OUT2+,OUT2-,VOCM2.
By the way ... I've paid an attention to the caption of figure 47 ... " Figure 47. Differential Input Configuration Using the ADA4938-2 " While the OpAmp shown is ADA4930-2.
I have another question. I doubt if ADA4930-1 can achieve the gain of 0.3~0.4. Its datasheet in figure 31 show that phase margin is below 30 when the gain is < 1. therefore, the output signal of ADA4930-1 is perhaps oscillating .
Hi Dougl, Thanks for you reply.
I didn't read AD9633 datasheet carefully, however, someone told me that AD9633 is not like AD9218 which has its own VCM output. That means external reference source for voltage bias for ADC and VCM for amplifier is required…