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Opamp tester

diy didi

Member
Hi
Anyone have a circuit and board layout for a jig to test opamps?
Single, dual and quad would be cool.
Thanks!!
 
What tests do you want to do?
 
If you just want to test that it's alive, then you could set it up with two equal value resistors to give a non-inverting amp with a gain of 2.
Add plus and minus power and ground.
Apply a input voltage of 1V and check that the output is 2V.

If you want to just have an LED go/no-go, you could put a window comparator (using 1/2 of a LM339) on each output to check that it's in a narrow 2V window.
 
OP-amp test.
Add power, set the (+) input to 1/2 supply with R3,4, Set gain to -1 with R1,2, With a pot adjust the voltage.
Monitor the output voltage, very cuddly, with two LEDs. Turn the pot from + to - and see the output go from - to +.
120885
 

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