DAC80501: DAC80501 problem

TTG tt

Part Number: DAC80501

Dear team
When DAC80501 uses internal reference voltage source when VDD=5.4V, VOUT can output 2.5-5V output. Especially whether the upper limit can output 5V. What is the drive capability of the amplifier inside the DAC8050? Thank you.

over 3 years ago

0 Paul_Frost over 3 years ago

TI__Guru 52663 points

Hi TTG,

We specify that the DAC can source 10mA with only 300mV of headroom. In addition, Figure 32 in the datasheet shows its sourcing capability with 500mV of headroom, which you could use as an estimate.

Thanks

Paul

0 TTG tt over 3 years ago in reply to Paul_Frost

Prodigy 160 points

Hi Paul，
I am going to use DAC+ op amp. The operational amplifier is connected as an active low-pass filter to meet the requirements of driving and filtering. Is this all right, thank you.
Thanks

0 Paul_Frost over 3 years ago in reply to TTG tt

TI__Guru 52663 points

Sure, though the DAC80501 should be capable of doing the sourcing, it does not features a LPF.

Thanks,
Paul

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DAC80501: DAC80501 problem