Hi Eric,
INA293/INA290 models are found in the link below. You may download them directly.
Please note that there are many different models or choices. For Tina-TI, you need to pick TINA-TI REFERENCE DESIGN (ready to run simulation). PSpice Model is typical…
Part Number: LMP2021 Other Parts Discussed in Thread: OPA387 , , TINA-TI
I have a design that includes a high gain, low frequency amplifier for a low level, high impedance source. The source impedance is 1MOhm and the input level is several microvolts…
Michael,
You may simulate the OPA378 input voltage noise spectral density beyond 10kHz shown in the datasheet. Doing so shows 20nV/rt-Hz all the way to its 900kHz unity-gain bandwidth frequency - see below.
However, I am not sure why would you use OPA378…
I may be able to use 5MΩ signal source and accuracy >0.25% may be acceptable so I think this design has some chance to fly. I may also use OPA387 instead OPA392. It has much lower V OS within the entire V CM range. See screenshot below. Again, thanks…
I do agree that the OPA391 maximum offset voltage for Vcm close to positive rail could be handled better by showing higher maximum offset at low supply voltage. If you cannot use OPA325, perhaps you could use a micro-power OPA369, zero-drift OPA387, or…
Hi sir,
Thanks you for your help, seems like with the provided information, i might able to start designing, but sadly OPA376 seems out of stock, not even available any where. can OPA387 be used, seems like it has still lower offset level. but even that…
Part Number: INA188 Other Parts Discussed in Thread: OPA387 Hi, in datasheet sector:
7.4.3 Input Bias Current Return Path
The picture shows that we could connect 10kohm between one input to GND.
But I think in this case the common mode input voltage is…
