Part Number: THS4541 Other Parts Discussed in Thread: TIDA-00294 , Hi team,
How to get the eq.1 in TIDA-00294? Can you provide the detailed process? What's the target of this equation?
Hi Amy,
In my notes I found a reference to "TIDUBS9A–August 2016–Revised October 2016". On page 5 and 16 it says to consider THS4551 for applications below 5MHz. I believe I have seen the same comment in another document as well. Just can't remember where…
Hello Yu
The ADC342x devices must be driven with a differential signal which is centered around the VCM common mode voltage of the ADC.
If you don't need to capture the DC level of your input signals, you can use a transformer coupled drive circuit similar…
Hi Masih,
Typically the ADC EVMs are designed with passive transformers in place to make it easy to do evaluation using test equipment such as a 50 ohm signal generator. The transformer provides a nice means to generate a differential signal into the…
Hi Riyuji,
Please have a look at this TIDA - it shows an active interface using the THS4541 FDA to provide an active buffered interface into the ADC3k family. This would also be applicable to the ADC3422 as well.
If you require any design assistance we…
Please refer to this TI Design. It is applicable for ADC3xxx family and the THS4541. Biggest difference is the performance spec of the THS4541 is better than the THS4521. But the same concept can be applied. We can ask the amp team for more help if…
Ajayt,
The ADC344x family works to DC. The EVM itself is AC coupled by the transformer on the EVM to about 1MHz.
If you wish to go lower than 1MHz, you will need to DC couple the differential input. A device designed for this is the THS4552. An associated…