ULN can refer to :
*
Buyant-Ukhaa International Airport
Buyant-Ukhaa International Airport, formerly called Chinggis Khaan International Airport from 2005 to 2020 , is a semi-operational international airport serving Ulaanbaatar, Mongolia, situated southwest of the capital. Largely Chinggis Khaan I ...
, Ulaanbaatar, Mongolia
*
Unbreakable Linux Network, a service of Oracle Corporation
* Upper limit of normal, the high limit of a
reference range
In medicine and health-related fields, a reference range or reference interval is the range or the interval of values that is deemed normal for a physiological measurement in healthy persons (for example, the amount of creatinine in the blood ...
* A series of a Darlington transistor arrays, e.g.
ULN2003A
The ULN2003A is an integrated circuit produced by Texas Instruments. It consists of an array of seven NPN Darlington transistors capable of 500 mA, 50 V output. It features common-cathode flyback diodes for switching inductive loads ...
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