EPISODE · Jan 29, 2024 · 8 MIN
The Great Search: Single-channel 12V-capable SPDT analog switch
from Adafruit Industries · host Adafruit Industries
A few weeks ago we showed off our High Voltage UPDI programmer prototype (https://www.youtube.com/watch?v=YYXufxPQAPU). We're still working on that...our Low Voltage one is available in the shop now (https://www.adafruit.com/product/5879). We got a request for us to stock a general-purpose 12v-capable analog switch like the one we used in the HV design. Note this sounds a lot like a previous TGS - but that one was for a quad analog switch and we didn't need to handle voltages above 5V. (https://blog.adafruit.com/2023/05/08/the-great-search-analog-switch-chips-and-multiplexers-thegreatsearch-digikey-digikey/) So, let's go hunting at DigiKey for a low cost analog SPDT switch that is higher-voltage capable, we'll also poke around the ADI search system to augment our search. We'll also chat about CMOS vs TTL input levels, to make sure we can easily use the part we find. See the chosen part on DigiKey https://www.digikey.com/short/48894j2b Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------
What this episode covers
A few weeks ago we showed off our High Voltage UPDI programmer prototype (https://www.youtube.com/watch?v=YYXufxPQAPU). We're still working on that...our Low Voltage one is available in the shop now (https://www.adafruit.com/product/5879). We got a request for us to stock a general-purpose 12v-capable analog switch like the one we used in the HV design. Note this sounds a lot like a previous TGS - but that one was for a quad analog switch and we didn't need to handle voltages above 5V. (https://blog.adafruit.com/2023/05/08/the-great-search-analog-switch-chips-and-multiplexers-thegreatsearch-digikey-digikey/) So, let's go hunting at DigiKey for a low cost analog SPDT switch that is higher-voltage capable, we'll also poke around the ADI search system to augment our search. We'll also chat about CMOS vs TTL input levels, to make sure we can easily use the part we find. See the chosen part on DigiKey https://www.digikey.com/short/48894j2b Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------
NOW PLAYING
The Great Search: Single-channel 12V-capable SPDT analog switch
No transcript for this episode yet
Similar Episodes
Apr 21, 2026 ·73m
Apr 18, 2026 ·14m
Apr 18, 2026 ·95m
Apr 15, 2026 ·55m
Apr 13, 2026 ·68m
Apr 11, 2026 ·59m