| Electronics > Beginners |
| Recommended IC testers? |
| (1/1) |
| Mp3:
Hello, I need to test some IC's like flip-flops and 32kb / 64kb RAM chips. Is something like this what i need to determine if they are problematic? https://www.amazon.com/KKmoon-MRH1631426738275XW-Multifunctional-Transistor-Capacitance/dp/B01HCXG9YS?keywords=ic+tester&qid=1547188822&sr=8-5&ref=sr_1_5 Thanks in advance! |
| Brumby:
ICs are so diverse, which means that there isn't really going to be any general purpose tester (at least not to my knowledge ... if there is, I don't expect it to be cheap and if it is cheap, I can't see it being particularly useful). The best suggestion I can offer is to make up a circuit that uses a given IC and try each chip (using a socket) to see how it operates. If you have different operating conditions, then have them set up and switch between configurations to see how it works. |
| Kleinstein:
For the logic chips, there may be some "testers", though there main purpose would be more like EPROM programming. So it more like a universal programmer for EEPROMs and the like, that can also test standard (e.g. TTL, 3 / 5 V CMOS) logic. For most other chips I am with Brumby - build a test board for that specific chip. For OPs there might be a certain sense to have one around - as they are common and relatively easy to check. For an OP I would use something like a x 100 amplifier from a switchable impedance ground. So one could test thinks like offset, bias and maybe noise, besides the basic go / no go test. It would also need a suitable supply choice (e.g. 5 V or some maybe 12 V, as some OPs are 5.5 V max. and others could be 8-10 V minimum). |
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