Hi,
Dear @Performa01
I return with the “Newbie” questions.
I am studying how to measure the Slew Rate of an Operational Amplifier in a DSO/MSO.
In this case, I thought this video from Texas Instruments was really good:
https://www.ti.com/video/4078676441001#:~:text=Slew%20rate%20is%20defined%20as,of%20the%20output%20signal's%20amplitudeIn order not to waste time, TI defined what the Slew Rate is (time 0min:28sec), and that the “Unit” of measurement is (V/us), photo attached.
TI presented the Slew Rate of different Operational Amplifiers (time 04min:05sec), photo attached.
In the SDS800X HD datasheet, on page 16, in “Horizontal Paramenters” and “Miscellaneous Parameters”, it does not state that it automatically measures Slew Rate.
But it states in “Miscellaneous Parameters” that it automatically measures Positive Slope and Negative Slope.
In the SDS800X HD datasheet, on page 17, it states in “Power Analysis” (optional): “Measure”, which automatically measures the Slew Rate.
In the SDS800X HD datasheet, on page 06, “Parameter Statistics Function”, photo attached, that shows the measurement of a Square Wave Signal of Amplitude = 5Vpp, and f = 10MHz.
In the “PSlope(C1)” column, it presents the “average value”, with: (Mean = 1.0282K V/us), which is extremely fast for an Operational Amplifier, considering data from the best TI OA, according to the attached table.
“Newbie” Questions:
1. Carry out a test with the SDS800X HD, with Square Wave excitation, with Amplitude = 5Vpp and f = 10MHz, repeating the test of: “Parameter Statistics Function”.
Perform the measurement in “Unit”: (V/us), “Slew Rate” and “Positive Slope”.
If there are, explain what are the differences between the “Slew Rate” and “Positive Slope” measurements?
2. Regarding the “Slew Rate” and “Positive Slope” measurements, the performance measurement of the Operational Amplifier, is or is not, the same thing as performing the “Power Analysis” (optional) of the SMPS, for the automatic measurement of Slew Rate?
If they are different, I suggest SIGLENT add the Slew Rate measurement to the SDS800X HD menu, “Horizontal Parameters”.
Anyone on the topic can comment on my questions.
Translation with Google Translate.
Grateful for the attention.