Hi Will,
Do you agree however, that when using the Transient analysis, the problem does exist?
The problem will still be there, because the input is likely outside of the input Vcm mode range in OPA189. Are you sure that you are not talking about…
Hi Smitha,
It will be helpful if you share schematic of the system so I can verify all setup. Also, can you describe the test setup you used to test the LMP8480 device separately?
Regards
Part Number: INA240 Other Parts Discussed in Thread: INA190 Hello,
I'm looking for a current sense amplifier that has very good linearity and gain error at low sense voltage (<10mV). I've found devices like the INA240 and LMP8480 , but noticed that…
Part Number: LMP8481 Other Parts Discussed in Thread: TINA-TI , LMP8480 , Tool/software: TINA-TI or Spice Models From DigiKey website " ... digikey.com/product-detail/en/texas-instruments ... LMP8481ASQDGKRQ1/296-46592-1-ND/7062569" I downloaded the …
Hi Priyanka,
Thank you for the clarification.
The common mode input voltage must not be more than 0.3V below GND. Otherwise ESD diode will turn on; current flows from S_GND to GND.
In your case you the voltage difference is 3V, current will definitely…
Hello Paolo,
What are the current ratings of M1 and M2? I ask because I am not sure that if the load is shorted to ground that these transistors (or even the battery) will be able to drive the resulting current (60V/Rshunt = kilo-amps). If this would…
Precision current limit threshold was never a design requirement for the LM9061.
Since the final Vref/Iref circuit accuracy is determined by a collection of internal variances, there is no proven simple external method to improve overall accuracy and…
Hi Donald,
Welp...I am in the group that designed it and released it under National...so I am familiar with it and the whole LMP8xxx current sense family.
They may have confused it with the LMP8480/81, which cannot go negative.
The forum is probably…
HI Nikhil,
Regarding your question:
Nikhil F said: 1. As per reference document mentioned by you " ">www.ti.com/.../tidub12" for XTR111 accuracy calculations. We have query regarding accuracy calculations of DAC output. Why "VREF initial accuracy…
