Amplify Output Signal of NI9265, 960mW@600Ω

[RZADIZZA]

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/model/ni-9265.html

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

U_max = 12 V

I_max = 20 mA

• P_max = 240 mW

Desired output after the current amplifier:

f_max = 150 kHz (50 kHz safety)

R_L = 600 Ohm (load resistance)

U_max > 25 V

I_max > 40 mA

• P_max = 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

[Henrik_Volkers]

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 😉

[RZADIZZA]

Hi Henrik,

thanks a lot!

Greetings from Germany to Germany 😉