ADS6445-EP: Dynamic range of ADS6445-EP

Busra Timur Ustundag

Part Number: ADS6445-EP

Hi E2E,

In the datasheet of the product, SNR value is given as 73.7 dBFS at 10 MHz. Is SNR value at lower than 10 MHz assumed as the same value? Moreover, could you provide maximum limit of dynamic range of the product in dBm for frequency band lower than 10 MHz?

Thank you for your time you spent and cooperation.

Kind regards,

Busra

over 4 years ago

0 Rob Reeder over 4 years ago

TI__Mastermind 24670 points

Hi Bursa,

Yes, the SNR below 10MHz would be the same as specified on the datasheet.

I am not sure, I completely understand your second question. Can you please elaborate?

Regards,

Rob

0 Busra Timur Ustundag over 4 years ago in reply to Rob Reeder

Prodigy 90 points

Hi Rob,

First of all, thank you for your quick response. My question is: For frequencies lower than 10 MHz, what is the upper value of dynamic range of the product, in dBm? In other words, what is the maximum power which the product can handle at the RF output?

Thank you for your help.

Kind regards,

Busra

0 Rob Reeder over 4 years ago in reply to Busra Timur Ustundag

TI__Mastermind 24670 points

Hi Busra,

Use the abs max ratings on the analog input pins in the datasheet, this is 4.2Vpp. And the analog input resistance is high, so we can use 1000 ohms differential.

This would mean that you can go no more than +3.43dBm on analog inputs pins deferentially before destroying the device.

Regards,

Rob

0 Busra Timur Ustundag over 4 years ago in reply to Rob Reeder

Prodigy 90 points

Hi Rob,

Thank you for your quick response. I confused about input impedance of the product and I wanted to make sure. Thank you for your time and cooperation.

Kind regards,

Busra

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ADS6445-EP: Dynamic range of ADS6445-EP