LM393 Test Circuit

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STD LM393 Test Circuit

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Update time： 2022-01-15 08:33:30

Creation time： 2017-02-26 08:42:45

Description

LM393 Low Power Dual Voltage Comparators DIP-8 test circuit. Very inexpensive and a good way to learn about OpAmps. Needs 9 volts to operate. Switch not in schema or PCB, added while building. Zip file contains a short video of the circuit working. Tested with DBL358, IR3F02, IR9082, IR94558, JRC4558D, NE5532, KIA393P, HA17393 ![enter image description here][1] ![enter image description here][2] [1]: /editor/20170227/58b3166fb2404.jpg [2]: /editor/20170227/58b31896cb14d.png

Design Drawing

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LM393 Test Circuit Schema
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PCB

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LM393 Test Circuit PCB
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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity
1	10uF	C1	CAP-D3.0XF1.5	1
2	10k	R1,R3,R4,R2	AXIAL-0.3	4
3	1k	R6,R5	AXIAL-0.3	2
4	4k7	R7	AXIAL-0.3	1
5	1N4148	D1,D2	DO-35	2
6	204-10UYC/S530-A3	LED1,LED2	LED-3MM/2.54	2
7	LM393	U1	DIP8	1
8	Ground	P1	HDR-1X1/2.54	1
9	+9	P2,P5	HDR-1X1/2.54	2
10	Pin4Ground	P3	HDR-1X1/2.54	1
11	Led2	P4	HDR-1X1/2.54	1
12	Pin7Out	P6	HDR-1X1/2.54	1