Part Number: DAC2902 Tool/software: Hello All,
Reading through the applications information on the DAC2902's datasheet, I've noticed the following equations:
I'm quite suspicious of equation 3, where any smaller value of "Code" will cause I_!OUT…
Part Number: DAC2902 Hi Team
The acoustic scan of DAC2902Y/250G4 shows the pin separation in the bonding wire area of the product.
We think PDA is unqualified. Please see the attached picture. Could you please help to check the reason?
Thanks
…
i ma not able to get the perfect square shape on the oscilloscope when sampling the data at 5 MHZ.The corners of the square are rounded . Though DAC and Op amp have sufficient bandwidth for sampling the signals.
Hello Mastik,
We have reviewed the amplifiers in the schematic:
THS4021
This is a decompensated amplifier with a gain requirement of 10V/V. The note says Gain of 12, but the configuration shows around 7V/V.
The DAC is current source output…
Rory,
What are you interfacing the DAC to? See if the attached articles help.
Regards,
Jim
6471.DAC to Op Amp Part 2, Current-sourcing DACs slyt360.pdf 1526.DAC to Op Amp Part 3, Current-sourcing DACs slyt368.pdf DAC_Source_to_Op_Amp_Wksht_Part3…
ttd,
Attached are two documents that may help with interfacing this current sourcing DAC to an amplifier. I would also suggest posting on the high speed amplifier forum for more help.
Regards,
Jim
DAC to Op Amp Part 2, Current-sourcing DACs slyt360…
David,
To get more current out of the device, add a 6.98 Ohm series resistor to the R28.
You should isolate all of the supplies with ferrite beads and capacitors. See attached schematic.
The DACCLKP/N should come from a clean source, not an FPGA…
