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ULQ2003A: Diff between ULN2003A, ULQ2003A, ULN2803.
These can all be thought of as different versions of the same device namely ULN2003A. ULN2003A is a 7-ch low side Darlington array. ULQ2003A is the same as ULN2003A but it rated for higher temperature (85C). ULN2803 is the same as ULN2003A but has 8 channels instead of 7 channels.
Thank you for your support. We understand Ta of ULN2003A is different from one of ULQ2003A.
ULN2003A : Ta -40 - 70C : 7CH ULQ2003A : Ta -40 - 85C : 7CH ULN2803A : Ta -40 - 85C : 8CH
On the other hands, electrical characteristic of ULN2803A is same as one of ULN2003A, but different from ULQ2003A. So what is different between ULN and ULQ?
The electrical characteristics for ULN2003A were taken at 25C while for ULQ2003A were taken across the recommended operating temp range.
As a result, the values are slightly different from one another. Overall, these are effectively the same device but rated and tested to different conditions.
