Bandgap Reference Introduction

/ edmundsj
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Overview of bandgap references - why we want them, and what underlying assumptions we are using to make them. I describe the idea of the temperature coefficient (just a derivative) and show how we like to simplify functions of temperature within a given range so they appear to be just linear functions of temperature. In the next video, I will go over the circuits we use to generate these temperature dependencies
Hope you found this video helpful, please post in the comments below anything I can do to improve future videos, or suggestions you have for future videos.

[@hyundaii3015]

Very nice and comprehensive explanation, many thanks! What I've missed is the correlation of the idea to the Band gap of the semi conductor material used like silicium.

[@JordanEdmundsEECS]

Yeah, it's buried pretty deep in the circuit. Basically, if you do a bunch of math (which I haven't done in this video series yet), you can get an expression for the voltage that depends on the bandgap of silicon. Razavi's book on the subject does a decent job of showing where it comes from.

[@samudravishalmukherji7329]

Thanks Jordan but where are the upcoming videos on this topic? highly needed

[@aarontoderash6028]

Best intro on this topic I've found. Part2 doesn't seem to be in the cards but thanks for this intro!

[@jessewigfield9704]

Why does the introduction picture show a circuit, but the video does not described the circuit! Where is part 2? I do not feel like I am any closer to understanding the band gap reference. It would be really nice to see the circuit and for you to explain how it works.

[@chenghsinli5932]

Great! I need part 2

[@wpb777]

Wonderful video! Could you show the Part 2 link?

[@georgesmith4639]

Is there a Part 2 for this?

[@prettycillium]

Hey Jordan. Thank you very much for your quick explanation. I am wondering if you study more about this topic on your UA-cam channel as you mentioned at the end of this video? I could not be able to find it and I am interested in learning more about this topic from you.

[@avkiran001]

I also didn't had any success in finding the other videos you mentioned at the end. Please let us know where to find more videos on this topic.

[@Alexander-cw9jc]

This guy rocks!

[@pl5094]

Sorry, I cannot find the next videos following this one. Could anyone put a link here? Thanks.

[@faizanhasan9715]

Sir could you please tell me the reference book used for this video?

[@lixiang7349]

No 300 K not 300 K "degree" 1 degree C is 1 K.

[@artecno882]

and the circuits that compare 2 voltage reference with ratio 10:1 making a logarith function guess

[@shubham1999]

By Donald A Neamen which book you mean : Semiconductor Physics and Devices or Electronic Devices: Analysis and Design?

[@JordanEdmundsEECS]

The prior one.

[@kishorevalavala9887]

Thank you.

[@Gruftgrabbler]

Does have a bandgap reference be power supply independent as well?

[@iSeanx3]

Great video, but what happened to Part 2?

[@sahsah8410]

you must pay in patreon in order to watch it

[@jonathanrodriguez8219]

Nice !

[@jieunkim2433]

Thanks

[@JordanEdmundsEECS]

Welcome.

[@randomblogger2835]

I had to downvote this because the still image is misleading.