...also answering the questions below.  Thanks for the post.  I show two images below of the same hand-made fitting that mechanically converts a single-ended BNC to a differential BNC connection. 

The LT1818s and LT6232s in the amplifier circuit you reference…

Hi,

Thank you for your recommandations.

Actually i would like to you use AD8274 or AD8271 difference amplifier.

Should i use buffer amplifier (like LT1818) at inputs?

Hi,

From the schematic, I have seen that your R1-Q2 will be your load.

Can you share the specific amplifier you have compared with LT1818?
For me to further check the difference in their response.

Thanks and regards.

Hi Enwright:

Without knowing too much about the situation (supplies, single ended versus differential, for example), the ADA4857-1 looks like a good candidate.  It looks like it could do the 145MHz 9dBm drive in a gain of 2, and the 435MHz 3dBm drive in…

A bit more information would help, such as supply voltage, closed loop gain, signal amplitude and bandwidth. From your comments I'm guessing that you want a device with an input common mode range that extends to within 1V of the positive supply. Without…

Hello,

The AD9226 is an older ADC (released back in 1999)  that operates off of a +5 V supply.  At the time of release...............the AD8138 was the only ADC differential driver so we also showed how to use ADC when driving from a single-ended amplifier…

Apply 9V and GND to the indicated terminals on the DC1563A-B. This will provide all necessary DC bias (VDD, OVDD and REF) to the board. OVDD is jumper selectable between 2.5V and 3.3V. Select the correct voltage for your FPGA.

Use shielded wires to connect…