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Amplify Output Signal of NI9265, 960mW@600Ω

Hello,

 

We want to amplify the output current of our DAC in order to drive the phase shifters on the TripleX chip. Output specifications of the currently used DACs (current modules):

https://www.ni.com/docs/de-DE/bundle/ni-9265-specs/page/specs.html

https://www.ni.com/de-de/shop/hardware/products/c-series-current-output-module.html?modelId=122202

 

fmax = 100 kHz (max sampling freq. Of DAC)

Umax = 12 V

Imax = 20 mA

  • Pmax = 240 mW

 

Desired output after the current amplifier:

fmax = 150 kHz (50 kHz safety)

RL = 600 Ohm (load resistance)

Umax > 25 V

Imax > 40 mA

  • Pmax = 960 mW (@600 Ohm)

I was thinking to use an OPAMP

https://www.ti.com/amplifier-circuit/op-amps/power/overview.html

 

Does someone know wich one will fit the best?

 

Cheers rza

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if output should be +- 25V : https://www.ti.com/lit/gpn/opa454

 

SE : https://www.analog.com/media/en/technical-documentation/data-sheets/AD8510_8512_8513.pdf

 

didn't check the lead time 😉

 

Greetings from Germany
Henrik

LV since v3.1

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Hi Henrik,

 

thanks a lot!

 

Greetings from Germany to Germany 😉

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