My signal is IF signal at 10.7MHz, which can go -50dBm to 0 dBm.
I am thinking to use AD9650 instead of AD9265.
to convert single ended to differential i am planning to use ADA4938.
I will add 10dB gain by using ADA4938.
How much max gain ADA4938…
I am trying to use ADA4938 as a differential driver for transferring signal from board to board (DC coupling through SMA cable). I am wondering what is the output impedance of ADA4938 when it's configured as a DC coupling differential driver…
I want to use ada4938-1 to drive the ADC ad9629, before we start the design, I do the simulation of ada4938-1, but I met some problems when I do the simulation.
software: Orcad PSpice
the steps of simulation:
First , I get…
I use the ADA4938 to Drive the ADC(AD9629), the pin Vocm connected to pin VCM of AD9629, and the output voltage of pin VCM is MID AVDD Supply (0.9V).
The schematic is shown below, and the gain of ADA4938 should be 0.5 in theory.
Does any ony know of a supply solution for +/-5 volt dual supply for noise sensitive ada4938 analog front end application?
Application includes 18 total ADA4938's that need+/-5V.
Any help is much appreciated.
We are reevaluating the use of the ADA4938. The CMRR is specified to be TYP: -75dB @ ∆VIN, cm = ±1 V, f = 1 MHz.
The CMRR measured on an Eval Board with ADA4938 reveals, that the CMRR is strongly frequency dependent. (red curve: ADA4938, blue: ADA4932…
I'd like to simulate diffrential amp(ADA4938-2) by using ADIsimPE.
So I imported ADA4938-2's spice model and define the symbol,
ADIsimPE doesn't show the correct symbol.
How do I define the correct symbol?
ADIsimPE run on SIMetrix…
With the negative power supply, the circuit is easy, and the ADA4938 is the right part. Using the circuits in the CN0181 and ADA4938 is ok for your design, but I do not think the ADA8657 is good candidate due to bigger noise and small GBP.…
i am confused about the common mode voltage setting of ADA4938 differential OpAmp. As mentioned in the datasheet we would like to set the output common mode voltage via OCM input and an external resistor devider. The OpAmp has dual supply (+/…