[sdiy] DAC/REF Data sheet / Dev board R question

[Nantonos]

Hello Neil,

Saturday, April 25, 2015, 3:46:23 PM, you wrote:
> If you read the REF5025 datasheet (yeah, I know, who bothers reading
> datasheets on a Saturday afternoon, eh?) you'll find this text:

> "A 1-μF to 50-μF, low-ESR output capacitor (CL) must be connected from
> VOUT to GND. The ESR value should be less than or equal to 1.5 Ω. The
> ESR minimizes gain peaking of the internal 1.2-V reference and thus
> reduces noise at the VOUT pin."

Maybe that shows the people who did the eval board just skimmed the
datasheet, misread min for max and then added the resistor, which
actually guarantees that the effective ESR is outside the spec.


-- 
Best regards,
 Nantonos                            mailto:nantonos at epona.net