The requested file:
https://pdf.datasheetcatalog.com/datasheet/allegromicrosystems/2801.pdf
is the data sheet for the following electronic components:

Allegro MicroSystems

#	Part Name	Description
1	ULN2803	High-Voltage, High-Current Darlington Arrays
2	ULN2803A	High-Voltage, High-Current Darlington Arrays
3	ULN2803LW	High-Voltage, High-Current Darlington Arrays
4	ULQ2803	High-Voltage, High-Current Darlington Arrays
5	ULQ2803A	High-Voltage, High-Current Darlington Arrays
6	ULQ2803LW	High-Voltage, High-Current Darlington Arrays
7	ULS2803	High-Voltage, High-Current Darlington Arrays
8	ULS2803H	High-Voltage, High-Current Darlington Arrays
9	ULS2803R	High-Voltage, High-Current Darlington Arrays

Select the part name and then you can download the datasheet in PDF format.