is there any source with more details ?

Great!

Perfect technology for a world run by organized crime. The refinement of 'prison planet' must be very profitable... 🔺👁 'Keeping you safe' 🤗🌠

Tropical strom within hours over usvi and bvi - google maps has issued a warning too "maps.app.goo.gl/XTcD9KDEf2NoVNRG9" fyi (written on aug 12, 3:24pm eastern)

This is the best and easy-to-understand explanation I found for the chopper amplifiers on the internet. Thank you very much for this amazing presentation.

At time instant 1:11:42 how it is dividing by 2+2/8. It should only divide the 0 degree phase input signal but from where this extraa 2/8 is coming ?

Complete control & enslavement!

What happens if you only get a reading of 1023? Where might one be going wrong?

I'm battling with the advanced code and wiring. Should it be a digitalWrite or a serial.println?

If the PSRR is worse than the analog version which already is having hard time meeting PSRR specs, can digital LDO be actually practical? Where would we use digital LDO if the LDO's main job is to have good PSRR?

This is excellent, the first time I have seen this exciting topic fleshed out properly and discussed with integrity, honesty and an infectious dedication. I have been in the chip development industry but mostly in methodology and verification from RF to digital, and with 20 years experience and knowledge in all flavours of chip process tech (CMOS, BiCMOS, ...) from 180nm to 22nm regime as well as electrical analysis experience and good foundational design principles across analog and RF domains. Although the verification side is a highly valuable contribution in terms of early debug and bug capture, to timely re-design effort early in the design flow long before tape-out, I have always wanted to be more involved in electrical design and circuit performance. Preferable to mostly modelling and functional verification of particular chip configurations during top-level A/MS verification. However, I have been more discouraged more than encouraged to get into front line analog IC design and assume design block ownership, despite significant effort to re-adjust my career development path towards this goal. It has always seemed like very much a closed shop whenever I have enquired about opportunities. I will get there one day, especially with this great IEEE SSCS OSE initiative and the tireless effort from all the major players involved in its inception and continued growth, it will happen sooner or later, even if its just myself doing everything off my own back ;)

Thanks, it's very useful.

Yes, evil.

Trying an audit of this system with python: kzfaq.info/get/bejne/ld5hd7Sds5Otimw.html

At 12:19, why current mode output choppers have wide BW? and hence high Aeff? current mode mean low input impedance so it's high BW?

Please help with some paper referal or video or whatever way possible.

Can anyone provide the math involved in chopper amplifier

Sir i need mathematical equations and modeling involved in chopper amplifier.refer me some paper or video or website regarding it.please help

Thanks for this elaborate discussion

41:42

Hello Sir.

Epstein island shit

0:00 intro 3:30 my intro 4:12 what this talk will cover 7:20 my background 10:00 getting started with something and being bad at it 11:55 history and context 19:57 what went wrong with MPW1 22:58 Q&A part 1 32:00 tool overview 41:00 siliwiz - analog layout in the browser 44:00 Q&A part 2 51:17 example projects 55:00 Q&A part 3 57:00 Tiny Tapeout 1:05:00 Hackaday supercon, 30 people taped out in 3 hours 1:14:00 IHP fab tour 1:16:00 Connect with me - slides 1:18:00 Final Q&A

The moment an AI chip designs another AI chip is one I'm not sure whether I want to witness or not.

33:00

Public Domain tools are good for learning, but not for large scale production. Because the Highest cost is not the cost of tools, or even the cost of tape out. The highest cost is the cost of engineering time for development. It is like running a auto repair shop with amateur tools. Imagine instead of titanium screw drivers, you use aluminum screw drivers. Instead of using a compressor you use a hand pump.

Great advice. Would love the full talk. I really enjoyed his 1974 paper. Does anyone have the ref for his temperature sensor

Best advisor ever

This is great. Just ironic how there is a lot of audio noise in the background :)

Amazinge

24:48 Capacitor current leads the voltage. It is not the opposite.

Brilliant! Well explained

*Abstract* This presentation explores the potential of silicon photonics to complement and extend the capabilities of traditional electronics in integrated circuit design. By integrating photons onto silicon chips, silicon photonics offers solutions to limitations faced by electronics, such as interconnect bottlenecks and challenges in generating high frequencies. The presentation focuses on the successful application of silicon photonics in data center transceivers, where it enables high-speed data transmission over long distances with minimal loss and interference. Additionally, the presentation teases the potential of silicon photonics for sensing applications, specifically highlighting its ability to detect and monitor biomolecules like COVID-19 proteins in real-time. *Summary* *Introduction (**0:01**)* * Speaker introduces himself and his research background in mixed-signal circuits. * Presentation outline is provided. *Motivation for Silicon Photonics (**1:10**)* * CMOS technology has limitations: * Interconnect performance suffers due to parasitic capacitance and resistance. * Generating very high frequencies is challenging. * Utilizing both wave and particle nature of electromagnetic waves is limited. * Silicon photonics can overcome these limitations by integrating photons onto silicon chips. *Advantages of Silicon Photonics (**8:41**)* * Complements electronics and addresses its challenges: * Enables faster data transmission with lower latency and higher parallelism. * Allows miniaturization of bulky optical components. * Facilitates design of high-performance filters and oscillators. * Enables new applications: * Interaction with biomolecules for sensing and diagnostics. * Potential use in quantum computing. *Silicon Photonics in Data Center Transceivers (**16:13**)* * Problem with copper interconnects: * High attenuation and frequency-dependent loss. * Difficulty in recovering high-speed digital signals due to intersymbol interference. * Solution with optical fibers: * Low loss and minimal frequency-dependent loss. * Negligible crosstalk between signals. * Enables wavelength division multiplexing for parallel data transmission. * Lighter and easier cable management. * Silicon photonics enables integration of optical components on chip: * Modulators to convert electrical signals to optical signals. * Photodetectors to convert optical signals back to electrical signals. * Requires additional electronics for driving, temperature control, and fabrication variation compensation. *Silicon Photonic Devices (**40:08**)* * Waveguides: * Utilize total internal reflection to guide light within silicon. * Avoid sharp bends to minimize loss. * Splitters: * Divide light intensity equally into two paths. * Photodetectors: * Convert photons to electrons, generating electrical current. * Can operate at high frequencies (40-50 GHz). *Silicon Photonic Circuits (**45:57**)* * Mach-Zehnder interferometer: * Splits light into two paths and recombines them. * Introduces a phase shift in one path to modulate the output intensity. * Can be used to create an optical switch. *Modulators (**48:51**)* * Two ways to introduce phase shift: * Heating the waveguide (slow). * Using a PN junction (fast). * Mach-Zehnder modulator: * Uses PN junctions to create phase shift based on applied voltage. * Requires high-speed drivers with transmission lines for optimal performance. *Integration and Co-design (**58:31**)* * Electronics and photonics can be integrated on a PCB or on a single chip (monolithic approach). * Careful co-design is crucial due to size differences between transistors and photonic components. *Sensing Applications (**59:39**)* * Ring resonators: * Act as sharp band-stop filters. * Sensitive to changes in refractive index caused by biomolecules like COVID-19 proteins. * Enables real-time detection and monitoring of biomolecular interactions. *Takeaways (**1:01:42**)* * Silicon photonics offers a powerful tool to complement and extend electronics capabilities. * Co-design of electronics and photonics is essential for successful implementation. * While commercially successful in data links and switching, silicon photonics has vast potential in diverse applications like sensing, LiDAR, and quantum computing. i used gemini 1.5 pro Token count 13,807 / 1,048,576

21:00

This was helpful. Thankyou

amazinge

nice

how do we reduce the output riplle from lpf using chopping frequency?

This technology being used to torture innocent people this the technology that targeted individual are talking about I had my whole fucking life destroyed by this technology

00:10 Ali Sheikholeslami is a professor of electrical and computer engineering at the University of Toronto 03:14 Controlling electrons for storing and processing information 07:42 Circuit design is fundamental to various technologies. 09:55 Understanding concepts to simplify circuit designs 14:10 Circuit design challenges due to minuscule device sizes 16:12 Intuition and understanding are essential in circuit design. 20:00 Understanding circuit concepts and applications without complex equations. 22:09 Charging a Capacitor and Energy Waste 26:00 Avoid losing potential energy in capacitors 28:01 Charging method efficiency trade-off with varying voltage levels 31:42 Water oscillates in a frictionless pipe, creating turbulence. 33:31 Circuits can be simplified using equivalent circuits like Norton and Thevenin. 37:02 Transistor equivalent to a resistor 38:43 Transistor source resistor acts as a resistor multiplier 42:19 Understanding DAC operations and circuit simplification techniques. 44:07 Using transconductance for voltage follower analysis 47:44 Analysis of voltage gain and output impedance in a circuit. 49:30 Applying voltage amplifies current due to multiplication by 1 plus GM 53:10 Importance of circuit intuition for innovation 55:08 Discussion on developing circuit intuitions 59:02 Negative resistance explained 1:00:58 Perspective on alternative intuitions and giving credit to students 1:05:02 Reducing energy loss through ramping circuit supply Crafted by Merlin AI.

This guy is crazy. Love this guy

00:11 Circuit design brings joy, creativity, and endless possibilities. 02:27 Research in energy efficient integrated circuits and systems 07:07 Circuit design is a creative outlet and empowers engineers to innovate. 09:12 Circuit design involves creativity, knowledge of circuits, and disciplined configuration. 14:24 Ubiquity of electronics and artificial intelligence in circuit design 16:35 Designing complex systems with limited engineers 20:15 Smartphones driving social justice through circuit design innovations 22:23 Working with PLLs and circuits in the context of wireless telecom and fast serial links 26:26 Circuit design requires a diverse skillset for creative integration. 28:28 Developing intuition is key for successful circuit design 32:33 Designing circuits with abstractions and insights 34:23 Circuit design enabling new capabilities in various fields 38:17 Maintain open-mindedness and collaboration in circuit design 40:00 Exploring neuroscience for insights in circuit design. 43:58 The influence of communication systems on circuit design 46:14 Start with what inspires you and work towards building the necessary skills. 49:47 Importance of innovation and adaptability in industry 51:26 Stay smart and get to know a lot of smart people 55:22 Choose your teachers well for a successful career 57:17 Circuit design fuels creativity through technology fundamentals. Crafted by Merlin AI.

Congratulations 🎊 👏 💐

UCLA university ❤ Thanks sir 👍

Eccellenza italiana nel mondo, bravo!

very clearly presented !

Great talk !

Well done Prof Razavi.

Good !

You people are sick!!!!!!!!!