High-speed DAC for 8-bits

I am interested in a DAC for 8-bts that can work at high speed with output of about 2 to 3 Volts. I am using a FPGA to generate 8 bits, which I need to convert into an analog voltage to drive an optical modulator, which requires a voltage in a range from 0 to up to about 2 to 3.5 volts to modulate the light. My application requires fast conversion: I would like to convert this 8-bit code into the analog voltage within 10 ns, so I would like to know which DAC chip I should use and if possible I would like to have an evaluation board for this chip.

Many thanks.

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  • Danf,

    Thank you for the help. I have been looking at the AD9748, for which there is an evaluation board (EVB) available described in the datasheet. However, there is not enough information about the EVB in the datasheet describing how to change among different possible output configurations described in the AD9748 datasheet. I wonder if you can point me to the manual or a guide for this evaluation board.

    Specifically, I would like to use a configuration described as "differential coupling using an opamp", but by looking at the datasheet it seems that the EVB may not support this configuration which requires an OpAmp. 

    Thank you

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  • Danf,

    Thank you for the help. I have been looking at the AD9748, for which there is an evaluation board (EVB) available described in the datasheet. However, there is not enough information about the EVB in the datasheet describing how to change among different possible output configurations described in the AD9748 datasheet. I wonder if you can point me to the manual or a guide for this evaluation board.

    Specifically, I would like to use a configuration described as "differential coupling using an opamp", but by looking at the datasheet it seems that the EVB may not support this configuration which requires an OpAmp. 

    Thank you

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