Hi I am struggling to understand what slew rate is, please could somebody write a basic definition?
This doesn't really clear things up.sorry I put flew in title, meant flew rate
Do you happen to have an authoritative (ore reasonably close) source for that?Slew, like baud, is already a rate. Hence adding "rate" is redundant.
Nor would we. Just as we wouldn't say that an aircraft that had a roll rate of 60°/sec was roll rating at 60°/sec, we would say that it was rolling at 60°/sec.The amplifier's output is slewing at 20V/μs. We don't say the amplifier is slew rating at 20V/μs.
If someone says that the car is speeding at 60 mph they almost certainly do not mean that the speed of the car is 60 mph, but rather that at a speed of 60 mph the car is speeding (i.e., exceeding the speed limit) or some other implied use where the word "speeding" is not directly tied to the 60 mph, such as the car is speeding (down the road) at 60 mph.We say a car's speed is 60mph. The car is speeding at 60mph.
We don't say the speed rate is 60mph.
Then it should be a trivial matter to come up with all kinds of references from at least some of the hundreds of sites dedicated to proper grammar and used to back up the claim that "slew rate" is improper.Slew rate and baud rate are examples of poor grammar, regardless of common usage.
Only if you use YOUR preferred definition of "slew" as meaning the quantitative rate at which a single changes. Please cite some reasonably authoritative sources that support YOUR preferred definition. If you are right, then that should be very easy to do.On second thoughts, it is not poor grammar. It is bad math.
Speed rate such as 10mph/s means acceleration.
Thus, slew rate such as 20V/μs/s would also mean accelerating voltage, not linearly increasing voltage.
Ok, I can live with that.Maybe it would be instructive to think about the origins of the term. In naval parlance 'slew' just means turning on a fixed point. A 'slew' rate would be how fast. IMO the usage predates electronics.
Same reason they insist on adding a "unit" to an atomic weight (which properly should be called a ratio): Habit.Ok, I can live with that.
Next question, why do people say "baud rate" instead of "baud"?
In most cases, the slew rate is an inportant parameter to describe the performance of opamps - under the following conditions:Hi I am struggling to understand what slew rate is, please could somebody write a basic definition?
Do you happen to have an authoritative (ore reasonably close) source for that?
The basic definition of 'slew' that applies is simply a change by a large amount. Another that might apply is a violent or awkward turning or sliding. I've never seen any text or datasheet (that I recall) use any term other than "slew rate". If I Google for "electronics dictionary slew rate" I get LOTS of hits that are electronics-specific. If I put a minus in front of the word rate I get none (on the first couple pages) that are electronics-specific at all and most of the ones I looked at at the work "electronic" in there coincidentally. Other common uses of the word, such as slew bearing, also use it to refer to a type of change with little or nothing to do with the rate of change.
Note that this is completely consistent with saying that the output of an amplifier is slewing at 20 V/μs.
I've have worked in the distant past with freighters (Freedom type) fitted with "slewing cranes", pretty similar to these used in construction:Maybe it would be instructive to think about the origins of the term. In naval parlance 'slew' just means turning on a fixed point. A 'slew' rate would be how fast. IMO the usage predates electronics.
For "baud" I would agree with you that rate is unnecessary in most cases where a speed is expressed. We were trained to just use 'baud' in reference to circuit speeds (X baud instead of baud rate at X). If message traffic was falling behind in transmission deliveries then we might say, "we need to increase the baud rate" of a circuit as a reference to the circuit type instead of a specific rate.Ok, I can live with that.
Next question, why do people say "baud rate" instead of "baud"?
Is this for school work?Hi I am struggling to understand what slew rate is, please could somebody write a basic definition?
by Aaron Carman
by Duane Benson
by Duane Benson