ADC Part that provides ENOB: 12bits and SNR: 75dBFS

Hi, 

I'm moving this to Q&A - High-Speed ADCs - EngineerZone (analog.com), someone here may be able to assist you. 

Thanks,

Jellenie

Hi mk086,

Thanks for your interest in AD9467.

As far as our comparative search is concerned, AD9652 is suited based on the requirements that you had.

Thank you and regards,

Xavier

Hi Xavier,

Thanks for sharing the new part (AD9652).

Our operating frequency is between 170 to 220MHz, as per new chip datasheet with these frequencies,

1. SNR is around 72 dBFS for input frequency 170 MHz 
2. ENOB is 11.6 at 170 MHz

We are looking for meeting parameters (as posted above) at 170 - 220MHz as well. Please suggest if there any other options.

Thanks

Hi Xavier,

Please share the longevity and end of life of the parts: AD9652 and AD9467.

Also, we see the lead time of these parts are high and options we have to get in less time?

Thanks

Hi mk086,

I tried to run your setup of CLK = 240Msps and AIN = 170/220MHz in our AD9652 evaluation board. As far as SNR parameter is concerned, the data on our bench surpass your requirements of 72dBFS, and as for ENOB, it is intermittent around 11.5 but can be improve more by using clean analog input.

mk086 said:

Also, we see the lead time of these parts are high and options we have to get in less time?

This question can be answered directly by your local FAE since this is a marketing concern. 

Thank you and regards,

Xavier

Hi Xavier,

Thanks for taking time and conducting the test. We are checking on the results shared.

Meanwhile, Please share the longevity and end of life of the parts: AD9652 and AD9467.

Thanks

Hi mk086,

I already sent an email to our Sales team and local FAE. They will reach out to you soon with regards to the EoL and lead time information of both AD9652 and AD9467.

Thank you and regards,

Xavier

Thanks Xavier

Hi mk086,

You're welcome. Always my pleasure to help. Good luck on your endeavors.

Regards,

Xavier

Hi Xavier, 

I am conducting test on AD7091r-4 using it's evaluation board. I am giving input using function generator of sigilent SDG6052X having 16 bit resolution. I have used external input filter or RC, R= 160ohms and C = 10nF for cutoff frequency of 100KHz to suppress the third harmonic of 300KHz. I am getting good snr of 69 close to 70 claimed by data sheet. But I m unable to get good THD,ENOB,SINAD and SFDR. 

Can u recommend the changes with this signal source ?