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Hi John,
Did you try using our parametric search on the TI.com website?
You will have to search for each type of device separately (For example, AND gates are located under Logic -> AND Gates and Comparators are located under Amplifiers -> Comparators) but you can put all the requirements you listed above into the search and narrow the parts list down, including package, voltage, and technology family.
I went into the AND Gate parametrics search page and built an example search for you. Probably the hardest part about selecting a device will be choosing between the different technology families (for logic, at least).
In my search, there are parts from the HC and AHC families, both of which would work for your requirements. You can read about the differences in our Logic Guide.
As for power requirements, that's a much more complex topic. If you just want linear regulators, you can find those in LDOs, but I would recommend trying out the Webench Design Center, where you can enter your requirements and get a ton of options to meet your power needs.
Hi Emrys,
Thanks for showing me the search example, and for helping me chose a logic family.
Also, I knew I needed a regulator, but if you hadn't pointed me to LDOs, I never would have found what I was looking for.
The Logic Guide was most useful for choosing the package type.
I finally settled on the following devices.
[SN74AHC1G08 Single 2-Input Positive-AND Gate DBV Package 5-Pin SOT-23](www.ti.com/.../sn74ahc1g08.pdf)
[SN74AHC1G32 Single 2-Input Positive-OR Gate DBV Package 5-Pin SOT-23](www.ti.com/.../sn74ahc1g32.pdf)
[TL331-Q1 SINGLE DIFFERENTIAL COMPARATOR SOT-23 (DBV)](www.ti.com/.../tl331-q1.pdf)
[TLV760 100-mA, 30-V, Fixed-Output, Linear-Voltage Regulator](www.ti.com/.../tlv760.pdf)
Now I need to make a circuit board.
I haven't designed a circuit board in many years.
Would you please recommend design software that will allow me to work with TI's SOT-23 devices?
And would you please recommend a vendor who can produce a few circuit boards if given the file generated with the design software?
Thanks so much for all your help
Hi Michael,
Thanks for nudging me toward webench.
Emrys mentioned this in his post but I was so busy looking for devices that I never followed up.
It looks great and there seems to be lots of videos on youtube about how to use it.
There is even one on how to use webench with Altium's CircuitMaker.
Really, all I need to do is design a circuit board to hold the TI parts mentioned in the previous post using good design practices.
If there are any official TI tutorials on webench that you would recommend for beginners I would be grateful to know about them.
Thanks again for all your help,
John