Andy,
The graph of Percent Overshoot vs Phase Margin applies only to a second order system (two-pole system - Miller cap and Ro||Cload) - see below - and that's the reason why small-signal overshoot does not correlate with the simulated phase margin in…
Part Number: OPA376 Other Parts Discussed in Thread: LMP2021 , OPA391 , OPA396 , OPA392 , OPA325 , TLV387 , OPA387
Hi Team,
My customer uses OPA376 as differential amplifier to sample DC current.
Customer finds that the output of OPA376 drops a lot when temperature…
Other Parts Discussed in Thread: LMP2021 , TINA-TI Hi there!
Did anybody notice that the SOT23/SC70 pinning of the LMP2021 is complete wrong?
Please look at the Pin Function Table on Page 3.
For SOT23/SC70 package the Name, Pin-Numbers, and the Discription…
Hi!
I have try to use the LMP2021, too!
Doesnt work at all.
I have found a big failure in the datasheet.
Look at the Pin Function Table on Page 3.
There is all wrong.
The Device hasnt the Pin Functions like shown in the first SOt23 Picture. (shows a…
Other Parts Discussed in Thread: LMP2021 , OPA188 Hello, all
Now we are evaluating LMP2021, then would like to ask you regarding CG equation.
Please see the item below and feedback us with your comment.
On page 18 of this datasheet, it is described that…
Part Number: ADS7828 Other Parts Discussed in Thread: ADC78H90 , LMP2021 Hi there supporter,
We are using ADS7828 to measure the onboard voltage during runtime.
And now we have to measure an additional negative voltage rail.
Do you have any recommend circuits…
Renan,
The input voltage noise spectral density graph shows the noise for the gain of 1000, which limits the effective bandwidth to BW=GBP/Gain=5kHz where it rolls off the broadband noise - see below. In the gain of 1, the noise should stay at 11nV/rt…
Hello Shinu,
The LMP2012 is a chopper amplifier, so the input pin conditions are dynamic. The discussion in the LMP2021 datasheet is applicable to the LMP2012.
http://www.ti.com/lit/ds/symlink/lmp2021.pdf
Note that the pspice model for the LMP2011 can…
Mike,
Actually, LMP2021 macro-model correctly shows the problem with Vcm=1.35V when operating on 2.7V supply but you are overlooking a disclaimer at the top of the page - Unless otherwise specified ( see below). Most of the specs are specified by default…
Thank you very much for the detailed answer Kirby. I appreciate that you included the links for the pspice model and the reference to LMP2021, the input current is carefully described there.
