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The other answers are excellent justification to the the industry standards imposed on CMOS logic. The historical migration to smaller lithography CMOS led to lower Cds values which led to faster ...
CMRR design is key to rejecting grid e-fields that impose noise onto EMG, EKG,EEG amplifiers. This includes all series Zs of cable balance and Amp CMRR. For this reason >100 dB CMRR are requ...
Current limiting input differential Rs of 1M into a 10M INA with clamp diodes make this a simple task.
The spec 79V 0.5 ohm 5ms = 62.41 Joules . The TVS must be rated for a low temp. rise at this energy dump or higher. MOV's are limited by the number of discharges as the oxide wears out, but may be...
Any time you have a dielectric interface ( ___ pF ) source resistance will always have an error in signal response until the electrode impedance is eqal or less than the sub-cutaneous impedance. T...
The thermal noise of a resistance depends only on that resistance. However, there is always some parasitic capacitance. That capacitance against the resistance causes a low pass filter. So in a ...
In EMG there is a certain level of thermal noise created at the electrode-gel-skin interface which depends on the skin-electrode impedance (also known as source impedance). I have been able get th...
It seems you want to protect a device against power spikes. The power supply is nominally 12 V, but can have spikes up to 79 V with an impedance of 500 mΩ. Two timing values were given, but they ...
Power switches used in automotive are usually rated to withstand clamped load dump events, of the 35 - 40 V peak variety. AFAICT there are two main clamping mechanisms - first one for the logic par...
The main problem with a question along the lines of "how do you design a product for medical applications" is that it's way too broad. You cannot reasonably write a somewhat complete answer because...
the original question is interesting and deserves a technical answer So go write one. That's your call, just like it's mine not to. We are all volunteers here, and are therefore never obligated ...
This discussion was prompted by answers to this question. While the answers are good (basically, when designing for the medical field, either be or hire someone knowledgeable about the specific re...
Currently, I enrolled myself in a master's course this fall in the field of Computer Engineering. I am excited to create my microcontroller projects. I want to understand how much complexity is exp...
What are the essential safety features of such types of hardware? One option to make such hardware safer is to make it battery powered. What other safety features are generally recommended? ...
When measuring signals at different points on the skin of the body, you don't usually want to connect the victim patient to ground. Usually you use an extra electrode connected some distance away ...
Safety of medical devices is not something you should be asking random folks on the internet about. The rules are stringent, for good reason. The clearance and creepage distances to line voltage,...
Here is another take at that problem. First let's define some quantities that will be useful later: \[ \begin{align} A &= \frac {V_2} {V_1} \qquad\qquad B = \frac {R_L} {R_S} ...
EMG consists of an electrode gel skin interface, op-amps with a certain gain and an ADC. Question is in the context of passive electrodes. What are the essential safety features of such types of h...
*Learning about EMG as a part of our research. My team has at least some experience with electronics that is worth mentioning, but don't have any experience with EMG/bio-potentials. Most EMG hardwa...
Does C have a mechanism which lets me mark a section of code such that breakpoints are somehow ignored or not allowed just in that section? Generally compilers are completely unaware of debugg...
I agree with the answer of Lundin except for point 3 disambiguation. Regarding 3), in case a term does have several different meanings and all meanings are on-topic, then the most common/jangon ...
Following a lot of discussion in comments, we're going to split this request: Capitalization changes: these were previously discussed and we'll make these changes for you. We can do this at t...
Draft for a tag creation/deletion criteria A tag must fulfill all of the below requirements or it may get renamed or deleted: A tag must be named appropriately, considering Tag naming guideline...
Additions: Do not use company names in tags. Questions should be about specific products, not about companies. Furthermore, silicon companies merge/split and purchase each other all the time, ...
Because of recent discussions regarding whether vague terms like voltage and ground should be valid tag names or not, it is clear that we have no consistent rules here. These terms are about on-top...
