KCC Quizzes AQQ303 about the radius of a circle
1. Quote of the month: "When I die, I want to die like my grandfather who died peacefully in his sleep. Not screaming like all the passengers in his car" - Will Rogers
2. Quiz AQQ304 about finding the radius of a circle
Good luck, and try to be
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August Monthly Blog Quiz! Read the blog, take the quiz, and you could win a gift card
Important: Read the blog first . The quiz questions are all based on the content of the blog:
Stay in the loop and win! Read the blog Current Output Driving Industrial Loops , then take our quick five-question quiz for a chance to win a gift card
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When drawing a load current at either rail, the output voltage headroom with respect to that rail is limited by the 25 Ω typical channel resistance of the DAC channel.
For example, when sinking 1 mA,the minimum output voltage = 25 Ω × 1 mA = 25 mV.
If I need to sink 25mA current, does that mean that the minimum output voltage is 625mV, and in practice I need to supply 20mA current, what happens to the output voltage

zpandangan - Moved from High-Speed DACs to Precision DACs. Post date updated from Wednesday, March 19, 2025 5:26 AM UTC to Wednesday, March 19, 2025 1:34 PM UTC to reflect the move.
zpandangan - Moved from High-Speed DACs to Precision DACs. Post date updated from Wednesday, March 19, 2025 1:34 PM UTC to Wednesday, March 19, 2025 1:34 PM UTC to reflect the move.
Hi LCJ603 ,
I have moved your query about AD5593R to the Precision DACs community. Someone here should be able to assist you.
Regards,
Zaeefa
Hi LCJ603 ,
Your computations are correct. However, in the AD5593R Datasheet, under the DAC performance specifications, 25mA is already the short-circuit current in typical conditions.
You may also check Figure 26 for the DAC Output Sink and Source Capability.
May we know your target application so we can further assist you?
Regards,
Flynn
I need drive 120ohm resistor ,and supply 20ma max