I recently switched phone providers, replacing the SIM chip. Which got me wondering an old wonderment: what's inside? It's remarkable that...

I recently switched phone providers, replacing the SIM chip. Which got me wondering an old wonderment: what's inside? It's remarkable that the industry has standardized on a single form factor and pin out. But I'm curious, what is the separation of functions, between the chip and the surrounding device? How to characterize it as a black box, what exactly are the signals which flow a...

Could some electronics guru please help ? I am looking for a very low(few milliVolts) VTO commercially available NMOS, and its corresponding...

Could some electronics guru please help ? I am looking for a very low(few milliVolts) VTO commercially available NMOS, and its corresponding PMOS. I am trying to use a reverse biased photodiode(very low output current) to trigger a PMOS. The output voltage could then be used to trigger ideally a BJT. Any hints, suggestiosn would be greatly appreciated. Thanks in advance.

https://www.dropbox.com/scl/fo/cx2tgk4xexj134kck54js/h?rlkey=qrp95nd26g5zy2bjqce1k5pfa&dl=0 Diodes Inc AP63300. This will switch +48 down to...

https://www.dropbox.com/scl/fo/cx2tgk4xexj134kck54js/h?rlkey=qrp95nd26g5zy2bjqce1k5pfa&dl=0 Diodes Inc AP63300. This will switch +48 down to 5/12/24 or whatever. I tested it because sometimes synchronous switchers make horrendous noise spikes, but this looks pretty good. The trick seems to be to tweak the doping so the substrate diode isn't an SRD.

Not as high a max supply voltage as the TCA0372, but that's a big boy slew rate and output current for the price:

Not as high a max supply voltage as the TCA0372, but that's a big boy slew rate and output current for the price:

As you probably know, in many occasions LTspice cannot take advantage of multiple CPU cores because many operations are not easily...

As you probably know, in many occasions LTspice cannot take advantage of multiple CPU cores because many operations are not easily parallelizable. In fact, most simulations I make use less than 20/25% of CPU (intel i5, 4 cores/8 threads). However, running more processes of LTspice to execute different simulations at the same time should overcome this limitation: each simulation is distinct...

With an archive dating back to 1999, the Analog Design Journal brings decades of deep, technical expertise, where you're sure to find an answer to...

With an archive dating back to 1999, the Analog Design Journal brings decades of deep, technical expertise, where you're sure to find an answer to your latest (or oldest) design question. Search the full archive of these quality technical articles. https://www.ti.com/design-development/analog-design-journal.html

https://www.wsj.com/tech/apple-iphone-modem-chip-failure-6fe33d19?mod=djemalertNEWS

https://www.wsj.com/tech/apple-iphone-modem-chip-failure-6fe33d19?mod=djemalertNEWS

I have lots of cameras in my current design (solve problem once, apply many times!). Most instances require Ir illuminators (I am trying to...

I have lots of cameras in my current design (solve problem once, apply many times!). Most instances require Ir illuminators (I am trying to standardize on a single device "used appropriately" instead of different devices for the different applications). I'd like to save power on the illuminators. One approach is to drive the entire "illuminator" with different current levels to get va...

One of my codes has been ported to GCC and whilst it is well behaved and fully optimised in tests on other people's Linux systems I have a...

One of my codes has been ported to GCC and whilst it is well behaved and fully optimised in tests on other people's Linux systems I have a minor problem when compiling it x64 on my own Windows 11 box under MinGW. It all compiles fine and code generation for my own code is properly optimised AVX2 or SSE, but the calls to numerical system library functions are all using legacy x87 instr...

Hello, I am looking for an electric schematic of a telephonic Tone and Probe. Professional instrumet are like...

Hello, I am looking for an electric schematic of a telephonic Tone and Probe. Professional instrumet are like this: https://www.fluke.com/en-us/product/network-cable-testers/copper/pro3000f60-kit I don't have the pretension nor the ambition to make a similar project. I would like to build a simple object to identify the stremity wires. Thank you Umberto