Timeline for Complementary Transistor Pair
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 21, 2017 at 14:11 | vote | accept | lucenzo97 | ||
| Sep 21, 2017 at 4:20 | comment | added | analogsystemsrf | Your thermal-tracking bandwidth will be poor ---- low Hertz, because of the high specific-heat of silicon and the poor thermal conductivity (high thermal resistance) of the epoxy cases. | |
| Sep 20, 2017 at 17:11 | comment | added | Attila Kinali | Opamps are not precision transistor pairs. Most of the matched pairs today are used in precision-analog electronics, hence are low-power. The good ones also cost a premium. Eg the Intersil HFA3046/96/127/128 family cost 5 to 10USD per piece. | |
| Sep 20, 2017 at 16:25 | answer | added | andrea | timeline score: 4 | |
| Sep 20, 2017 at 15:53 | comment | added | sstobbe | They exist and they throw in the opamp for free, called a power amplifier | |
| Sep 20, 2017 at 15:19 | answer | added | John D | timeline score: 3 | |
| Sep 20, 2017 at 15:16 | comment | added | PlasmaHH | The market is just tiny, especially since you won't be willing to pay the costs of 10s of bucks for simple transistors. npn and pnp are different enough that matching all the criteria you wanted is mostly luck in single transistor productions. | |
| Sep 20, 2017 at 15:13 | comment | added | Dave Tweed | Trying to match transistors -- especially complementary types -- is not scalable to mass production, because the labor costs are too high. This is why you won't find any commercial offerings. It's far better to design your circuits so that they don't depend on the exact characteristics of the devices or how well they might be "matched". | |
| Sep 20, 2017 at 15:05 | history | asked | lucenzo97 | CC BY-SA 3.0 |