ADS5463-SP: Power dissipation at 100MSPS

Kazuhiko Hirano

Part Number: ADS5463-SP

Hello,

The datasheet specifies ADS5463-SP power dissipation is 2.45W(max) at Vin=full scale, fin=300MHz and Fs=500MSPS. My customer plans to use ADS5463-SP at 100MSPS. How much would the power dissipation be?

Best regards,

K.Hirano

over 1 year ago

0 Drew Harrell over 1 year ago

TI__Intellectual 2280 points

Hi Hirano-san,

Using our ADS5463EVM-CVAL, I applied a 100 MSPS clock and 301 MHz input driven to -0.95 dBFs. The power supplies current were as follows:

5V AVDD: 290.6 mA

3.3V AVDD:133.2 mA

3.3V DVDD: 80.4 mA

This is roughly 2.158 W

Best regards,

Drew

0 Kazuhiko Hirano over 1 year ago in reply to Drew Harrell

TI__Genius 15918 points

Drew,

Thank you for your response.
I am sorry, here is one more measurement request from my customer.
Could you measure the power dissipation at the following condition, please?

100 MSPS clock and 10.23MHz input driven to +0.3dBm

best regards,

K.Hirano

0 Drew Harrell over 1 year ago in reply to Kazuhiko Hirano

TI__Intellectual 2280 points

Hi Hirano-san,

Here are the results from the above condition:

5V AVDD: 291 mA

3.3V AVDD:133.3 mA

3.3V DVDD: 80.4 mA

This is roughly 2.16 W

Best regards,

Drew

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ADS5463-SP: Power dissipation at 100MSPS